No activities that I can think of that would have caused the spasms, but then I've been having a lot of muscle spasm problems since last Sept. and have attributed those to FMS. And, I always have tight muscles in the neck and shoulder, and across the chest. Its funny you mention TOS. A number of years ago, one of the doctors I saw suggested TOS may be my problem, but no one has mentioned anything since then.

Ellena