About 3 years ago, after a bout with Giardia, I was diagnosed with IBS and reflux (through both sigmoidoscopy and endoscopy). After Giardia treatment, I was left with intermittent diarrhea (usually painless) or very frequent, loose bowel movements. Over the years, my IBS symptoms have lessened to where I sometimes do not consider myself to have IBS. I have been relatively symptom free for about a year. I do have other symptoms associated with the reflux which include nausea and upper GI complaints, but my intestines have been behaving.Then, abruptly last month, I experienced IBS symptoms which were a bit different from my past experience. To preface this attack though, I have to say that I have experienced some medical conditions which MAY be contributing. First off, I have been on oral contraceptives most of the year. I also take Synthroid for hypothyroidism. The oral contraceptives interacted with my Synthroid and for most of last year I was mildly hypothyroid. So, early in December I decided to stop the oral contraceptives so that I could get my thyroid levels where they need to be. A few days after stopping the pills mid-cycle (not good to do), I got a period (or should I say just bleeding) and along with that I got more severe menstrual cramping than usual. I figured this was due to stopping the pill mid-cycle and being all "messed up." The cramps lasted for 3 days and I finally realized that they weren't really menstrual cramps but more like "colon" irritation. It didn't really effect my bowels except that I was having more movements. And the pain wasn't so bad that I could not function. Then, about a week later, my son had a very bad episode with his asthma and he had to be hospitalized on an emergency basis. This really got to me I guess. I never really got cramps at this point, but I was having strange feelings in my colon as well as nausea. I was experiencing much anxiety (shortness of breath, facial flushing). I would also feel the urgent need to have a bowel movement and when I did I felt kind of bad afterwards. This went on for a week then seem to settle down. I also found out at this time that I was still hypothyroid.Now we come to Christmas day. I'm feeling better and having a great appetite. That day I ate a lot of bad things. Eggs, bacon, quesadilla, Godiva chocolate, prime rib, cheesecake, pie, etc. I went to bed and woke up around midnight with a lower ache in my intestines. Both left and right sided. At first I mistook it for possible menstrual cramps because it was not severe enough to induce a bowel movement. When Motrin wouldn't take care of it, I got up and had a bowel movement (which was normal). This continued all night. I got up the next day with the cramps and decided to stay home from work. I had about 3 bowel movements that morning, all progressively softer and God they smelled so bad. The bowel movements stopped but the ache was there on and off for 2 days. It just so happened that I had a follow up with my gastro. and I told him about it. He said I ate too much fat and I had IBS. Nothing more and I went on my merry way. A few days later I woke up with the mild cramping again (only on the left side this time) and it only lasted for about 5 hours. I had a mushy bowel movement with it that had some mucous in it. Then it was over. The last thing was just the other day. I was on my way home from work and the left sided pain started again. It also radiates around to my back. It is very low and it just feels like a mild squeezing. Again, I thought "Am I getting my period?" It doesn't induce a bowel movement but is very uncomfortable. This lasted for about 2 hours. The pain is so vague that I keep *thinking* it is more of a gynecological origin but in the end it always seems to point back to the colon. I guess my fear is, why is the nature of my IBS changing, why the sudden flare up after doing so well for a long time, and do you think this warrants further exam? Did I just get way too stressed out in December and will suffer a "backlash" for awhile? Are the sensations I am feeling "normal" for IBS. I guess because I'm not having pain with diarrhea together, I am stumped. And the fact that the pain is dull is kind of weird. Also, I never had right sided pain before, but I sure did after my Christmas dinner. What is that? I would love any opinions/thoughts because I am very nervous about this.Christine