Tennis elbow pain!!!!

Hi, I've been swimming about 1km for about a year, one day I decided (I know I did wrong, and I regret it) to swim more, and when I had swam about 1,750 mts my elbow started to hurt, even when I took a shower. The pain disappeared in a couple of days, but when I do some elbow movements my elbow does like a "crack" sound, and hurts a little, but disappears after a while, it's happened in movements like: .Jumping out of the pool .Pushing someone .Lifting weights over my head (for the triceps) .Doing tecktonik movements (type of dance) .And many more.... It's been like 10 months since that happened, but for the last 4 months I've taken care of myself, using the hot/cold technique, I've been lifting weights (increasing 250g each week), and increasing swimming distance (I swim 150 crawl, 50 breaststroke, 25-25 -holding a board at my arms, doing crawl and breaststroke kick) I started at 1km, and currently I am swimming 1.5 km, increasing 50 every 3 - 4 times I go swimming. After I go swimming, my elbow hurts a bit (without movement sometimes) but the pain goes away. I'd be so thankful if you guys could help me with this because it's been bothering me a lot, and I just wanna be able to do everything. Thanks in advance.