Physiotherapy

Recently I’ve had a few little injures (nothing really painful) that have caused me to stop going to the gym for last 2 weeks till now. The main issue is my shoulder, when I do a bench press or overhead press my right shoulders doesn’t seem to have any strength and feels very half way through the movement and towards lockout. But I feel absolutely no pain. Can anyone figure out what this is? A friend of mine who is a physician recommended me for physiotherapy in his clinic. Appreciate if anyone could shed some light on my situation. thanks.