Hi. I'm 15 years old, male and a healthy singer. i drink 2 bottles of water during school and I drink like 15 glasses of water on usual day, but today I think I was straining and I could NOT hit my notes anymore. I have a Deep voice so When I belt F's there F4's and I can usually sustains every note from C1 to A4... I could only HIT F's today for less than a second and Singing is my only passion so when something goes wrong I get very, like, I don't know dysfunctional and scared. So somebody PLEASE give me advice on how to get my notes back my full vocal range is C1 to G#7 or sometimes A#7's but that's rare. I can still hit my whistle notes but not my high belting notes. I sing only on Mondays and Wednesdays from 3:00 PM to 7:30 PM. And I drink many water bottles and like 2 cups of tea with honey. SO I don't know how I'm losing notes If I think I take good care of my voice.... I'm just panicking. So somebody PLEASE HELP ME!