Losts symptoms and conditions

Hi I'm a 35 yr old female i've been taken singular for several yrs now for my asthma. I let my script refills run out and in the process decided i wanted to stop taking it. I didn't think it was helping me anymore. I didn't see many of the side effects till i stopped the medicine. The first week very tired sinus and losts of headaches. The second week was hell I had fevers of like 99.9 and 100 with body aches, chills ,night sweats and terrible depression! I couldn't find the joy in me anymore at all! Didn't want to be with my family anymore I hated my life. I was also terribly nauseous and little to no appetite. I'm in my third week now the depression still comes and goes through out the day not as bad tho and the nauseous is still coming and going as well. I'm so frustrated! I would have never taken this had I known this would happen to me. Any one else experiencing this?