So uncomfortable

Every time I eat , even if it’s a little I get super bloated and have pain under both ribs. I’ve tried to just eat all three meals with nothing in between to rid the pressure in my tummy but not even that works. Also , my #2 is very watery and goes back and forth from orangey yellow to brown with a little red. I feel like I have to go but nothing. Any ideas what’s wrong ?? I’m so irritable and tired all the time 😕