Morning all

I'm stressing out, so figured I'd post here with like-minded people!  I'm 68 years old and have had horrible sit pain for approx 6-7 years, the pain comes from just inside my bottom left side, it only hurts when I sit. Have had it checked previously & been told they can't feel any abnormalities, have also had Pundendal nerve tests but they were negative. Anyway, enough was enough last week I was sick of being in pain every time I sat down, I went to GP and seen lovely lady doc, she had a feel round and exactly where the pain came from she said she could feel a tendon (I think that's what she said)...She also said she'd refer me to colorectal as they obviously have more specialists who can look at it. She said in order to be referred everyone has to have FIT test regardless,  so we went and did this. So surprisingly my test came back a positive 100....so I'm now stressing as I've got to have colonoscopy.. Is this a high reading for my age?  I've not lost any weight, I haven't had blood in my poo, I do get constipation as I'm on strong cocodamol daily, I also take Naproxen daily too, along with Omeprazole. Once my tum decides to poo, I do get cramps but I think this is hard stool working it's way round.... Only got my results this morning so stressing quite a bit.