I just wanted to say I think youre doing an amazing job! Working under such pressure and youre doing it!!!!

As for the tingling, it sounds like your ulnar nerve has been effected, its the nerve that sticks out on your elbow and run down your arm into your hand and ring and pinkie fingers.
If youve been leaning on the desk this can happen. Its really common.

I still recommend you go to your doctor to get checked, I just wanted to say that it doesnt sound like its much to worry about!

I hope the tingling stops soon and keep up the good work with your job!!