Hello, I'm 49 In Peri Menopause Stage. Taking Metformin And

Hello, I'm 49 in peri menopause stage. taking metformin and htn med. I have been experiencing, headaches, thoughts that i shouldn't be thinking of. don't know where this is coming from. started about 2 weeks ago. Still able to function, have a good time, however somewhat hard to concentrate. I have been having headaches. Thought this was due to my medication, but now i'm not too sure. Only time I felt like this was when my niece died about 3 years ago., Do you think this a form of depression or a result of my menopause or medication. thanks