you're gonna just have to suck it up and deal with the consequences. it could be a uti, std's, thrush...since you don't know what it is you need to see a doctor before it worsens and get it treated.
Sorry, but you're going to need a doctor's appointment. You may have a UTI or maybe even an STD. Either way, you need to see a MD and get properly treated. Things like that just don't go away. If left untreated, even a UTI can cause serious problems with infection spreading to the kidneys. Any STD left untreated will lead to infection, cancer, infertility and even death. Get checked out sweetie.
Sounds like a Urinary Tract Infection. You can get these without being sexually active, so you shouldn't be scard to talk to your mom. But you need to see a doctor. UTI's are caused by bacteria getting into the urethra... the tube that leads from your bladder and empties urine. If you don't get on antibiotics, the bacteria can continue to travel to your bladder or worse get to your kidney. Not to scare you but you should see a doctor. Meanwhile there are over the counter medicines can can ease your symptoms. One is called AZO.
It could be thrush - I had those symptoms. And the burning/itching tends to be much worse at night. Your parents don't have to know - tell them you think you have a yeast infection (which is very similar to Thrush), so you need to go to the doctors. They don't need to go with you and the doctors wouldn't tell your mom that you'd had sex. They'll give you treatment and it should clear up within about a week.
It could be a vaginal infection, but I really think it is an UTI (urinary infection) which is common. You will need to see a doctor and you don't have to tell them you had sex. Just telling them your are buring when you urinate and you feel like you have to go all the time. You will just pee in a cup and they will give you an antibiotic if it shows you have an UTI and you will be on your way. Do not let it go because it could go to your kidneys and this is much worse