You'd probably be better off talking to your doctor and having some bloodwork done. It could be as simple as some kind of deficiency. Throwing a random vaccine at it for something that vaccines aren't meant to do is probably ill advised.
I've done this, labs seems normal, though I don't think we tested for vitamin deficiencies.
Being deficient in vitamin d is especially common in winter months and can cause symptoms like yours. There are probably others worth checking as well. Good luck.
Vitamin D and the omega-3 fatty acids control serotonin synthesis and action, part 2: relevance for ADHD, bipolar disorder, schizophrenia, and impulsive behavior