I would tend to agree. My forearm paim really seems to have no relation to forearm strength. I have been lifting for many years and my forearm strength has increased accordingly, but heavy barbell curls still cause as much pain and discomfort as they did years ago.
In my case, I believe the pain comes from my hands/wrists being "locked" into an unnatural position by a straight barbell. E-Z curl bars may allow a more natural grip and DBs allow complete free range of grip/wrist position.
Again, I would lay off the exercises that cause pain for a week or two until the pain subsides, and then switch to EZ or DB curls.