Hi! I need some advice. I can't go to doctor due to quarantine/lockdown. I appreciate any insights and idea how can I treat it... like first aid and stuff. 
Basically my right hand is in bad shape. The base of my thumb, the fleshy part(thenar eminence) is swelling and has a small soft lump(not painful though and I didn't even notice the swelling part until I compared it with my left hand). Sometimes my thumb, ring and pinky finger are numb. Random needle pain at my wrist and some area from time to time. Now I can even wrist crack. When I crack it, the uncomfortable pain/numbness goes away.
I experienced the pain and numbness at my thenar eminence before, I thought maybe because of overused. It usually heals after a few days but now it's been 2 weeks and hasn't fully recovered.
I have a slight injury at my elbow 10 years ago, so It was normal for me to sometimes feel pain at my right arm and shoulder. But lately I can't even type on my phone properly.
It's not painful, it's just so uncomfortable I can't draw properly.
Have you experienced this?