Pain below tricep into elbow

I've been having a dull pain in my lower tricep (area) extending to the top back of my elbow for about the past year.  Within the last month, it's gotten much worse.  Not it's not just annoying, it's painful.  It feels like a strain or like something is tearing.  Throughout the last year, the pain has lowered from the tricep area to just above the elbow.

It hurts like crazy when I bench press, pretty much at any weight.  I bench press 290, and it hurts even at 135.  I've tried Ice, heat, rest, and anti inflammatory pills.  If I rest it for 10 days or so, it feels OK (not good) my first time back, but after that it's back to hurting again.  

I don't have good health insurance, and can't afford a physical therapist or a doctor to look at  this.  I really don't want to stop lifting, but I will if time will make it better.

I am 5' 8" 175 lbs, and 23 years old.  I am active and lift 3-4 times a week.  I train with heavy weights, power lifting routines.

Thanks for any suggestions/help you can offer.