u/Cookies_and_Cryme

I was diagnosed with crps in January of this year, left ankle. Since then I've been on nortriptaline and on 23 Feb I had my first lumbar sympathetic nerve block. For a few days after the nerve block the pain got worse, but then it got a lot better. I remained mainly pain free for about 6 weeks. I just had my second nerve block on Wednesday 29 April. Since then the pain has been awful. I now have pain in my spine too. And there is a dramatic difference in the nails of my left toes. One of the nails turned white and ripped off last night and now another toenail is turning white and lifting. Is this normal? I've also had a headache since the nerve block. Any advice would be appreciated.