What Causes Urinary Incontinence At Night?

Hello sir, My age is 25, i am facing bed wetting problem. In childhood i face this problem till age of 17, after that it s completely gone, but now it s happened in 5-6 times in year, i never take any liquid 3 hours before bed. I am also too conscious during my sleep, little noise or movement can wake me up, during bed wetting i also wake up instantly around 75% of urination. This is very embarrassing problem because i am just married. I can not go for check up also, please suggest medicines . This is very helpful to me. Thanks in advance.