I Just Started Taking Welbutrin 150 Mg 1X Per Day

I just started taking Welbutrin 150 mg 1X per day to mitigate menopausal symptoms after 3 years of managing difficult symptoms. In one day I felt relief. My concerns is potential for hair loss. How frequent is hair loss a problem? At 53 never having taking any medication of any kind other than vitamins, what pain reliever should I avoid if I get a headache?