The inflammation is normal, especially when you're first starting out. It's because you're stretching tight, injured tissues that aren't used to it. It's probably best to let the inflammation calm down before you do it again. Also, you may have done too much. In the beginning, less is better. If you do too much you'll get discouraged and quit because of the pain afterwards. I try to do these daily now, but in the beginning I waited for the inflammation to calm down before I did them again. Even now, sometimes I over do it and have to let things rest for a few days.