I am finally feeling great since I have started Pentasa. However, after 2 months of taking it, I am experiencing significant joint pain. Certain times of the day is worse or better but I always have it. Right now it's in my elbow ( like tendinitis) but has been in my rotator cuff ( the one I had surgery on). I do get general all over aches but they go away. Should I be concerned? The benefit I'm receiving GI wise is worth this pain ( so far). I would love to hear about others experiences.