Were you having fear and anxiety from incorporating activity into your life? If so, I would say just keep doing the activity. It will eventually let your brain know that you are NOT afraid of the pain and the pain should start to dissipate.
The biggest change I have made since self-diagnosing TMS is to just keep active despite any pain. That's new for me. I used to curl up on the couch or go to bed when I hurt, now I just go about my day. Sometimes I hurt for much of the day anyway. but it's better to keep busy.
I haven't consulted a professional, mostly because I think I can do this myself with the support of the books and this site, but also I am trying to conserve money right now. Just moved, new house and all that. If it feels right to you, you should find one but there's nothing wrong with working on it without professional help.
Part of my determination to 'go it alone' stems from my not wanting to do what I did for nearly a decade - turn to a professional (non-TMS) to 'cure' me or make me feel better. I would get dependent on various providers and it cost me a lot of money and didn't help in the long run. I realize that a TMS-savvy professional would not be the same but I need to do this on my own as much as I can.
I hope this helps.