I was so glad to find this. I have just had spinal injections. The first one went fine, the second time the doctor couldn't get the needle in where he needed to so he took it out and tried another spot and it went in. I skipped a week and then went in for #3. I couldn't believe that he did the same thing again but I thought if it helped it would be worth it. Since then I had a bad headache for a week and I began to get worse. The pain woke me up 3 nights in a row and on the third it was 1:am and by 3:am I thought my right leg was going kill me. I looked down and saw this big hump right below the knee. I waited until 5 and my husband took me to the ER where I was checked for blood clots. It wasn't a clot so I was glad. What I need to know is if anyone has had anything like this happen to them after these :? :? injections.