Hey Bumbutt,
Your Welcome! I know what it's like to self diagnose. I tried to figure out what was wrong with my butt many times. I did actually figure out that I had a fissure before the doctors that I went to did
I was scared to death that I had colon cancer or something when I first saw the blood because it didn't get to the real intense shards of glass feeling for a couple of months.
To answer your question, I couldn't stand to walk around either for more than a few minutes. I would lean on my lower back area with a heating pad under me.
I had a huge skin tag develop because of my fissure being chronic that also made me wonder if it wasn't just hems. I soon found out that it happens with chronic fissures. I had that removed with my LIS in October of last year( almost 3 months ago).
It's hard to say if you may just have hems that are giving you more trouble but I know from my experience the fissure would be ok with some of my bm's but the pressure and clenching never really went away.
That's funny about the snow,Lol I probably would have tried it if I lived where it snows! There wasn't much I didn't try. I remember reading on yahoo answers about someone who said they went to a neud beach and layed out and it healed their fissure?!

I seriously laid out in the sun that day hoping the sun would peek through my bikini bottom and do some magic healing
Needless to say that never happened! Nothing worked for me but LIS. I over used diltiazem, lived in the baths on a heating pad, gave up everything except vegetables and fruit- which gave me a near 50lb weight loss and none of it worked. I think it made things more bearable but in the last weeks before LIS, things were pretty miserable without much comfort, except for the fact I was getting the surgery!
Take care:) Good Luck w/ your CRS appointment!