Hi i have been getting a cold feeling in my mouth and then passing out. i also feel as if had had seizures?

See doctor in person: If you are randomly passing out or there is a concern for seizures then you need to be seen by a physician in person. You will need a comprehensive evaluation and workup that we cannot provide to you online.

Comments: Cannot be definitive based upon your information, but spells of "passing out" could represent fainting or seizures. Many causes of both. Would start with your primary doctor, and consider anemia, thyroid problems, cardiac issues, and even epilepsy.