(18 yrs of age)
For the past couple months I have had overly excessive gas, bloating, and some stomach pains. When I use the bathroom, I almost always strain and I am always left with the feeling that same feeling of needing to go to go to the bathroom (#2). Sometimes when I use the bathroom to poop, my stool comes out thin.
Recently I have been feeling slightly nauseous and at times I get a dizzy feeling.
I’d like to know if there is something wrong and if I should take precautions to consider cancer or any other illness.
Any medical information will be great. Please and Thank you.

I took a laxative about 2 months ago to clear up my first case of constipation since I was a kid (I’m coming up on 30). Ever since then I’ve felt like there is something lodged in my descending colon. I went to see the doctor about it out of fear that I had colorectal cancer. They performed a colonoscopy and nothing showed up, no polyps or even hemrroids. I don’t have diahrrea or excessive gas, so it isn’t IBS. The doctor seems to think that it’s my diet. But I eat healthy and have never had this problem before. Now I have a constant feeling of pressure/discomfort in my descending colon and never goes away. Any help would be GREATLY appreciated. Thanks ahead of time.
This is a serious question. Those of you who bring up gay sex and hamsters will be promptly reported.