I can't find answers to the questions I have by Googling...

about 2-3 months ago now I think stress caused me to experience hypothyroid symptoms. I had been ok and normal before that in the bowel dept. ...but then suddenly constipation, slowly getting worse and worse as there seemed to be less water in the stool. this led to anal fissure which just wouldn't heal. I went to the Dr. for a blood test and they said I "might" have a thyroid problem but they won't know until I do another repeat blood test in June. meanwhile, my bowel problem has not gone away.
so, I went to the pharmacy and got a bunch of constipation related meds, laxatives to keep the stool really soft and suppository that is supposed to heal up anal fissure. I knew if I kept up without these meds there's no way the fissure would heal - the only other alternative would be to stop eating anything until it healed. :/
about 2-3 weeks ago the treatment seemed to work, and I hoped I was healing up finally. I'd had anal fissure one or two times in the past before but it usually healed fairly quickly, never was chronic for months and months like this. but I've been too concerned to stop taking the laxatives after the pain finally stopped in case it just rips me open again.
then the last 2 or 3 days the problem seems to have returned. I'm getting very narrow and soft stools which is good, right? they must be about 1/4 the width I used to pass. Yet, it feels like the anal fissure is returning even so, the pain is back almost like it was before when I was used to much larger stools. what on earth is going on?

I am wondering now if it's a much more serious condition - like maybe a tumor narrowing the way or something? has anyone ever had a case of hypothyroid-caused constipation/fissure and what did they do about it? is it normal for fissure to heal and then get even more sensitive with smaller softer stools? I don't want to think it's cancer because all this only came on recently in response to what seems like classic multiple hypothyroid symptoms.
I don't know if it's piles, but I have been very careful not to push but let it happen naturally, still it seems like it's painful even with the softest narrowest stool. Before I panic and go ask the Dr. for a colonoscopy or something, I wanted to ask if anyone experienced the same?
