Pain in left side of chest and underarms

Hello ,i'm 23 year old girl. i have pain in left side of chest (6 cm left from cleavage) and pain in left  underarm. this is happening every week sometimes once a week sometimes twice or thrice and even four times since april but from last two days it is aching regularly. i had white discharge from both nipples from 8/08/2020 to 12/082020 . i consulted gynecologist on 12/08/2020 she told me this is due increase in prolactin hormone  but my prolactin report was normal my test result was 8.96 ng/ml she told me to start treatment as advised. the prescription is as follows   Tab cabgolin 0.5 mg once a week, Tab Chymonet AP BD only when it pains, Tab aciloc BD on empty stomach. CBC test report was normal, TSH report was normal, ANA test was negative. please Guide me further.