my mom was suffering from breast cancer earlier and then got operated ,, after surgery, doctor removed her one side breast, she had chemotherapy only, not radio therapy ,, now she's fine,, its about 5 years now wen she got surgery, now she feel some problems,, thats not so serious but then also i want to be sure about her,, so please guide me !!! she's having stalopalm plus from last 5 years,, n now wen she dont take the pill, she feels very restless, her pulse become slow !!! is there any serious side effect of this tablet ,, should we continue wid dis..