My stomach feels like it is tight. It feels like the insides get sucked in and there is pressure in my stomach, that stays; it gives me discomfort. It also feels like i need to poop, but i know nothing will come out. I know this may be constipation, but the only reason why I think my poop wont...

Hi. It's time for me to look into this more. When I get a stomach bug, minor or major, my stomach goes into disabling spasms. They are the worst pain I have ever felt. I can't move, barely talk and breath very shallow. It's so bad sometimes that I nearly pass out either from the shallow...