I'm 22 years old female. Sometimes I feel like the heavy flow of urine which is cannot be controlable and I run to wash room,, but then only 5-6 drops of urine come out,, n I feel like burning at that part... it happens mostly evey 15-20 day and remain for 3-4 days
I feel,, when I have sex it happens( thas what I think I don't know the reason for this problem)...
What is this problem? Is it a serious problem?

Could be a urinary tract infection and the infection is getting aggravated by having sex. There are some over the counter medications available but best to check with your doctor :)