SHoulder Muscle Spasms?

[Chameleon]

Shoulder problem...I injured it this past Christmas...took 3 weeks off from training it and came back and trained shoulders light...after months of only small pain it went away and have been training it heavy for months...Yesterday after my shoulder workout...Top of side delt was INVOLUNTARY spasms...and twitching...(i'm gonna get it checked out)...I know this isn't normal...but is it someting to worry about....and have any of u experienced this before...???

 

[USAF OKIEONE]

yes somthing similar
but i believe they were some serious cramps
i still get them in the shoulders from time to time
they are the worst cramps i ever have had