Shoulder pain

When i throw a ball my shoulder (lateral deltoid i believe) when it stretches back when throwing i get a tingle in my shoulder and the more and harder i throw the worse it get i don’t know what to do! I can hardly pitch. I can still throw but not with the accuracy or velocity i used to (age 15 83mph… Age 17 70-75mph) its killing me and not letting me make the teams i should I’m an awesome hitter and used to be a good pitcher… PLEASE HELP! If you need pictures or videos to explain more let me know!

Don’t lose any time! Make an appointment with, and go see, an orthopedic surgeon, and get X-rays and an MRI and find out what’s going on. The problem needs to be addressed and taken care of ASAP. 8)