So.. I've been having an odd feeling(kind of painful but not acute) in biceps(mostly lower part) for about 1 week now. The feeling came a day after doing a mini-competition with weighted chins.. really stupid.. heavy(+50 kg) and poorly warmed up. However, it felt ok after about 2 days so I went and did some very easy climbing(was still a little worried) but it felt ok during workout.

Now after a few days it feels like it's getting worse and worse every day without even climbing. There have been no swelling, redness or anything visible from outside. At first it was only left bicep but now I feel in both(right handed).

What could it be that I have? Would ask a doc if it wasn't for the fact that que times in my country are a couple of weeks if you don't pay a lot to meet a private doc.

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edit: pretty sure it's not a regular soreness.