You're tendons may also be screeming from over-use. Try backing off on the bi and tri isolation stuff (curls, extensions..). Bi's and Tri's get worked alot in good basic building lifts- medium grip bench(flat & incline), shoulder presses, pull-ups/chin-ups, rows... ect. I've backed off to a couple (maybe 3) sets total of 10-12 rep sets that specifically isolate bi and tri's. Doing this has greatly reduced my joint pains (elbow tendonitits). Just my $.02.
"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy." Winston Churchill