I cant really help or advise but I get similar symptoms to you 
IBS type symptoms , itchy hands , arms and ankles , restless legs at night 
I take iron hoping it will help with the restless legs and itching 
rubbing deep heat into legs before I go to bed helps too 
Im not sure if the itching is menopause related , Im just beginning menopause and Im only 42 , so Im still finding things out