Sounds like you might have compressed the sciatic nerve. I had a similar situation when I lifted something. I also found out I have a bulging disc at L4/L5 which is pinching some nerves. It hurts worse when I ride in a vehicle for any length of time. As long as I'm standing or moving I'm o.k. I am currently in pain management, doing exercises, etc. Not a whole lot you can do at this stage except treat the pain and try not to injure it further. I'm told that eventually whatever is compressing the nerve will heal, unless you have injured something severely. Probably need to tell your dr. and seek some help early on.