So I try to make a habit to practice for an hour and a half every day. I do all the stretches and warmups so as not to strain myself, as I've been there and done that with sports and do not want to repeat the rigamarole of physio with my wrists. That said, the other day I was maybe hitting the 45 minute mark of some rather casual slap technique practice, not really getting too hardcore into it (mostly just RHCP and the little incubus I can attempt) when I fretted a note normally and felt a huge pins-and -needles sensation (like when you restrict blood flow to a limb and then try to use it) that started at the finger tip (middle finger) and ran all the way down to the inside of my arm just below the elbow. I decided to give the bass a rest for the day, and when I went back to it 2 days later, the inside of my arm still felt really tight and almost swollen. Fast forward a week later without having touched the bass just to be sure, and everything feels normal, but I'm worried that this may be indicative of a bigger problem. Something worth worrying about, or am I just going at it too hard?