Been on it for 3 years - tried to come off by myself but became r...

Been on it for 3 years - tried to come off by myself but became really ill with continual wheezing fits of breathlessness and no voice for almost 6 weeks - had to go back on. Now having vision problems - floaters, blurriness and silvery specks of light dancing about sometimes and flashes on the peripheral vision. Weigh gain, sore muscles, unable to sleep, constant mouth thrush - never have been able to get rid of it, even with medications, and croaky voice.