Since I hit the 130s I've been experiencing discomfort/pain when I sit. I think it's my tailbone because when I put my hand to where the pain is coming from It's a little below the crack of my butt and it feels like a very hard, somewhat flat bone.

Last week I went to the movies with my husband and I slouched down in the seat and put my legs up on the seat in front of me (it was a mostly empty theater). Anyway that bone started to hurt within a half hour and even after I changed positions it hurt the rest of the night.

Today I attended a theee hour meeting where I sat in a hard plastic chair and surprisingly I was fine. Then when I was driving home I had to keep adjusting because that bone was bothering me again. My car has padded seats so I was a little surprised.

Right now I am sitting cross legged on my bed typing this on my ipad and it feels like my bone is pushing into the mattess. It feels like a dull ache that wants to become painful if I dont shift.

What gives? Is this normal? Is it one of those things that will pass? (When i hit 170lbs it used to be very uncomfortable for me to lay on my side i guess because I had less padding. Now It doesn't bother me)

I know what you mean. As we lose weight, some of us (like me) are losing padding on the butt cheeks. I had a broken tailbone last year (July 2013) and I sure feel that area now that I've lost over 30 lbs. Recommend you get a memory foam, egg shell type foam pad, or a gel pad you can put under your bottom to alleviate the discomfort. It has helped me immensely. The best pad I had was a gel pad that conformed to my body when I sat on it.

It is real easy to have a fracture of the tailbone, or even a hairline fracture. Mine was a full blown dislocated fracture and I couldn't sit without extreme pain for months. Last year I tried every donut pillow and even those blow up swim rings trying to sit comfortably. No fun.

Yes this happened to me. It is getting better as I have been at goal a while now

Oh, how I suffer with this! I have a desk job, and outside of designated exercise time, I'm rather sedentary. But I exercise a lot. Today is my only rest day for the week. Two mornings I went for a jog/walk, four days of bootcamp, a personal training session, and Sunday I have a 4 mile race. Bootcamp is the real killer, because we do a lot of core exercises on the floor. I have to roll up a mat for under my tail bone, and it's still very painful. And not just weight-bearing pain. If I poke it, it's sore. Bruised? Not sure when it'll have a chance to recover from the abuse..