I am a newbie here and just signed up as I'm in need of advice. I am 28 and have suspected IBS. I suffer from bouts of alternating constipation and diarrhea (sometimes together) which tends to be a lot worse when I have anxiety attacks. I can go for days without having a bowel movement and then be dashing to the loo several times a day with diarrhea and yet still feel constipated. I have not had any bleeding (other than very rarely from piles) and I don't suffer from pain or cramps. It's just the inconsistency with my bowel movements that is causing me concern.
I have in the past spoken to my GP who diagnosed this as IBS without running any tests. She just spoke about my symptoms with me and felt my stomach but that's it. I am now finding my symptoms seem to crop up more frequently and am considering getting a second opinion. My understanding was that IBS can only really be diagnosed once other conditions have been tested for and ruled out? Am I right in thinking that?
To be honest I think a lot of my anxieties (which definitely contribute to my condition) come from the worry that I am suffering from something serious like bowel cancer or Crohns. If I were to explain this to a GP would they offer me more tests or is that (at my age) not routine practice? I am not currently on any medication and since I can go for months without experiencing any symptoms I am not too eager to be put on any medication at present. But I just want a definite diagnosis so I can stop worrying and start thinking about how to manage with IBS attacks when they do happen. Any advice welcome.