Fear of colon cancer

Hello everyone. This will be a bit of a longer story. Has anyone had similar symptoms? I’m worried that I might have colon cancer. I’m a 35-year-old man, and there’s no family history of colon cancer.

About three months ago, I noticed that my weight has stopped increasing. I feel like I just can’t gain any weight — no matter how much I eat, it stays more or less the same. I haven’t increased my physical activity, I’ve only been focusing on my diet. So over the past three months, my weight has been stable, fluctuating within 2–3 kilograms.

A little over a month ago, I had blood work done. The results were good — there were no abnormalities that would make my doctor send me for additional tests. But lately, I’ve noticed that I’m constantly tired. Actually, it’s not even proper fatigue because I still have energy, it’s more like I feel sleepy all the time. On weekends, when I’m at home, it’s easier because I rest more, but during the week I really feel the tiredness. I have a feeling I might be low on iron or vitamins. But my blood test from a month ago showed normal hemoglobin levels.

In addition, about seven days ago, I noticed a pain in the lower right part of my abdomen, a few centimeters to the right of my belly button. The pain is dull, and I feel it mostly when sitting, especially when driving. In the morning, when I wake up, I don’t feel it until sometime in the afternoon — I think after I eat. I don’t feel the pain when standing or walking. The pain has lessened over the past few days — I still feel it sometimes, but less than before. Because of this, I’m afraid it might be right-sided colon cancer, since that type often doesn’t cause many symptoms.

My bowel movements are regular — I go every morning. There’s no visible bleeding, no diarrhea, and no constipation. My appetite is good. I just have this subjective feeling that I might be low on iron (I’m experiencing most of the symptoms of anemia), and those can also be symptoms of right-sided colon cancer.

So, these are the symptoms that have appeared over the past month:

constant tiredness (plus symptoms of anemia)

slight weight loss

dull pain on the right side around the appendix or cecum

I think the lower right side of my abdomen looks a bit more bloated than the left, but I don’t feel any lump when touching it

I know I’ll continue with further testing — first the FIT test, then other exams — but I’m wondering if anyone has had similar symptoms. It’s a bit hard to explain to my doctor since my blood test from just over a month ago was normal.

I’m ruling out depression or anxiety because I’m a family man with a strong mindset, and I handle life’s problems well. I also know my body pretty well, so I don’t think this is something psychological.