I've had this weird feeling for a few weeks now were I feel really drained out from inside and I just feel really tired all the time even though my sugar levels are in a normal range
Multivitamins might be worth a shot. I find I'd have to eat about a million calories to get my RDA of vitamins from food. I typically don't have the time or appetite to get this from meals. After a fortnight of taking multivitamins I felt noticeable more awake and energetic. But everyone's situation is different.
But, as previously mentioned, go and see your Dr. Don't worry though, just get checked over