Hi Tony,
Please don't panic, I think you will be fine..........I had a colonoscopy soon after I got my fissure. At that time, the fissure was really painful, agony (as you know), but the colonoscopy was fine. It didn't make anything worse. In fact, the cleansing and loose stools were the easiest poops I had since the fissure. The procedure itself was painless, in fact I didn't know anything about it. I woke up, felt fine, a bit woozy but not in pain. I didn't have a general anaesthetic, just a sedative.
Please don't freak out about the colonoscopy. As for your other problems, perhaps some of them will resolve when you start to take care of your diet. Get enough fruit and veg and drinking plenty of water. You can't beat the fissure on junk food and caffeine, you have to take care of yourself. The good side of that is that it benefits your whole body, not just your butt.
A lot of people come here and say they've been under stress. It's a common theme. I think when we are under stress we tend to eat comfort foods. Often that means junk foods. It takes a real effort to deny yourself that and start to treat your body right.
The good news is, everything is normal (except your lungs - do you smoke?). You are basically healthy, so you can beat this thing. Some other people here take antidepressants. If it helps you get through this, take them!
Let us know how you get on. If you need to vent, or ask questions, you can always come here. Search around the forum for diet tips and other tips to heal yourself. Above all, look after yourself.
