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
https://pubmed.ncbi.nlm.nih.gov/25713056/