Well, I feel pain in simular places from throwing, although rarely in the forearm. infact, the only time I feel sorness in the forearm is when it gets hit and then keep throwing repetitevely afterwards (AKA football). I doubt your arm was hit, but it might of.
ANYWAY, icing always works for my elbow and its all I ever really need. I doubt its anything that you should be concerned by too much.
I do have one significant question though that I think would help the entire forum: How active have you been up to this past week? What I'm trying to ask is that I assume you had some planned time to take off for recovery this summer, and I was just asking if there is any possibility that maybe you came off your rest too quickly. I only ask because it happened to me this summer. I had planned to take rest right after baseball, and then come back and start preparing for football, and I came back too quickly and I too had severe pain.
Also, what is your heating method? I never used those sleeves because I never saw the logic. I do the old fashion put the arm in warm water for a few minutes method, and while I must admit I do not heat often, when I do, I feel fresh after it, so maybe heating right before your practice/game would help.
Just some suggestions, I hope this helps. Please feel free to ask about any specifics of my arm experiences (I felt the post was long enough as it was
)
Andrew
PS. This is my 100th post; I just realized that! lol