Over the past four weeks I have been lifting a lot heavier than usual (6,4,2 reps) during all of my exercises. My elbow has been bothering me for about 2 weeks where it is sore to the touch mostly on the outside just below the tricep. I woke up yesterday to notice a fluid build up around the area. My question is, what causes the fluid build up? Where does it come from? I am almost sure it is due to heavy lifting, but I won't rule anything out until I know the above questions. I have been icing it this evening, but beyond that what can I do? I do have a doctors appt. for Friday but don't want to go if I don't have to, just my preference.