Hello,
Folic acid has few side effects, even when taken in high amounts. Although the folic acid itself is not a problem, supplemental folic acid can mask symptoms of pernicious anemia. So take it under a doctor’s guidance. You can also take foods rich in folic acid like leafy vegetables (such as spinach, broccoli, and lettuce), okra, asparagus, fruits (such as bananas, melons, and lemons) beans, yeast, mushrooms, meat (such as beef liver and kidney), orange juice, and tomato juice.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Folic acid is a B vitamin. From what I remember, B vitamins are water soluble, not fat soluble. This means, any folic acid you don't need is excreted in your pee. I'd be glad to learn if this is not correct but think it is. You could ask a pharmacist.