I really love to sing, but these past few weeks I'm having troubles, i think it started when my band played and I sang really loud, I can still hit the notes pretty well, but the problem is I can't hit the high ones without having troubles, and sometimes, i find myself exerting effort just to speak after talking for long periods of time. I feel like something's stuck in my throat, i don't know if that has something to do with the cough I had 2 months ago. please help? i can't see an ENT right now coz I'm really busy.