I've been having the exact same symptoms after
vaping for 2 weeks. My right shoulder feels extremely tight and achy. In addition to the muscle pain, my tongue has gone numb and my tonsils are swollen. After searching around the web I found out that this is a common problem do to an allergic reaction to the propylene glycol in the e-liquid. I didn't attribute the symptoms to
vaping at first either but it definitely is. Either stop
vaping or switch to a VG based liquid or it will only get worse.