Not sure what to do...

It's been a while again since I've posted... I didn't end up doing the Special K diet the whole time but did lose a few pounds anyways, softball has started up (going pretty well too!!), Adam went to Nebraska (No Turkeys) then LA (got some good work done) then I went to LA to spend the weekend with him (we had a lot of fun!) and now the latest thing we are dealing with is a sick kitty :( It's soooo sad and really stresses me out because I know she is uncomfortable but it's so hard to know what to do. We took her in initially because she was scooting around and making frequent trips to the litter box and they found she had a lot of bacteria in her urine and they also did an xray to make sure it wasn't something more serious and found she was super constipated! They gave us antibiotics for her infection and sent her home and said if she didn't "relieve" herself soon she'd have to get an enema done. Well, when I got home from work and saw her I noticed she was limping... I called the vet and they didn't know why she would be doing that but thought it could be because she was constipated which I didn't think was the case since it was just her left leg. Well, then as the night went on and the next day we noticed it was her right leg sometimes and then it progressed to where she was walking funny on both her back legs! I called the next day and they said we needed to take her in for the enema. I got an estimate on the price and it was going to be another $235!! (We'd spent almost $300 already the first appt!!) So... I called our old vet and got an estimate from them on what we had already had done and what the other vet was saying she needed and it was basically half the price! So... we took her into the old vet the next day and took her xray for them to look at and they thought she should try a stool softener and pain medicine and see if that works. Well, 2 days later it doesn't seem to be doing a whole lot... maybe has worked a little but it's really hard to tell with 2 cats who is doing what... She is still walking funny too so I called the vet this morning and they are going to call me back with what they think we should do... Anyways, that's kinda what's on my mind right now... how hard this is for me trying to make her feel better makes me realize how hard it must be to care for REAL kids :) So we'll see what the vet says later today... I just hope we can get her feeling better soon!