I hurt my neck when I was practicing headstand and there was a cracking sound when I fell down. The pain is still bearable, just that I can't really turn my head to the left and right now. Is x-ray necessary or should I just go for chiropractic treatment?

Also wondering if most yogis are suffering from body ache after practicing yoga? I do it like 3~4 times a week and the next day I always feel like being badly beaten up. I have bruises on my knees and arms too after doing the bakasana pose Are these normal?

How long have you guys been practicing yoga before you can do the handstand, headstand & etc?