Kenalog Kenalog Injection, Extreme Tiredness, Yeast Infection, Sciatica, Numbness

I had a Kenalog injection for my sciatica on 3/31/10. My immediate reaction was sever pressure and pain in the area of the injection and the muscles just surrounding it. I can not sleep on my back because it hurts too much. After about a week it has spread through my hips and progressed to affect my legs causing numbness, pain and extreme tiredness. I have trouble walking for any period of time, standing is even worse. The numbness seems to be increasing. I also have been experiencing bloating, lots of gas and got a yeast infection. Not only have I not had any relief from the sciatica which before only bothered me when I was sitting but now I'm having trouble walking. My doctor doesn't think the injection has anything to do with this. He has only admitted that I'm worse then before. It's a month since the injection and it seems to be migrating. I'm scared that it will not be temporary.
If anyone has any information for me please pass it on. I'm in the dark about what is happening to me.