I have a strong vinegar acid smell discharge coming from my vagina can it be my birth control pills or high blood sugar level ? or anything else ?

See your doctor: You will need a pelvic exam and possibly cultures and other testing to diagnose your problem.

See an OB/GYN: Get examined and diagnosed and treated if necessary. Cannot diagnose over internet.

Bacterial Vaginosis: You probably have a vaginal infection caused by bacteria instead of the more common yeast infection. The most common symptom is a smelly vaginal discharge. It may look grayish white or yellow. A sign of bacterial vaginosis can be a "fishy" smell, which may be worse after sex. You need a pelvic exam - a smear can diagnose this infection and it's easy to treat with antibiotics.