last 2 weeks i have been trying to control my ejaculation by strengthen the PC muscle my kengel exercises and suddenly i feel nothing i feel i am not turned on as before i feel almost nothing ....after some foreplay i begin feeling but it just not good enough( not hard enough)please i seek help it is started to annoy me ... i can't sleep for 3 days now i really can't live or do anything i have been surfing the internet but i just can't get an answer i am 23 years old...and its so early to use Viagra ,,,etc....please help ...thanks