Colon Cancer or IBS? Please help? Doctors/? :/ I\’m Terrified?

Okay so i’m 19, and ever since i can remember my stools have been what is referred to as “pellet stools” which i thought was normal till i started reading up on it. I’ve heard that pellet stools are a sign of Irritable Bowel Syndrome. About 2 years ago after i went to the bathroom i noticed the water was bloody. I showed my mom and she asked if i had hemorrhoids and i said idk but i noticed after i changed my diet that never happened again. Sometimes i feel bloated and feel like there is a lot of gas in my stomach which read is both a symptom of colon cancer and IBS. Other then that i have no symptoms.

I’m just really scared and after i read up on these things i started think i had colon cancer because i tend to be a hypochondriac. I’m a healthy weight and have been eating and exercising a lot more the older i get.
My boyfriend and mom have told im just worrying too much but i wanted to know if anyone else had any opinions.
Thank you so much!

Also im pretty OCD about things and am stressed quite often. If this matters lol