Suggest Remedy For Shoulder Pain Due To Muscle Cramps

i am habing a terrible shoulder blade aching pain... i go to the gym 5 days a week i didnt do anything out of the ordinary ... but im even loseing sleep i feel i cant stretch far enough..like i am reaching for the sky and its not helping...its a terrible muscle cramp... i have been on testosterone 250 and decca 100 but i upped my dose of decca to 1.5 cc and i injected it into the right deltoid this was last thurs but i cant see that being the issue ...i just did my left deltoid with the same 1.5 cc dosage .. im hoping i just slept on it wrong my arms have been getting bigger and i wake up with pins and needles sometimes in my arms