AstraZeneca Customer Service Issues

I received a prescription for Singulair from my pulmonary specialist, Dr. Suddith in Brunswick, Georgia. After taking Singulair for a month in February, I ended up being admitted to Mayo Clinic in Jacksonville, Florida. I experienced seizures, speech problems, heightened anger, taste aversions, hair loss, hearing issues, and a locked jaw, along with a rapid heart rate and sleep difficulties. These side effects persist, and the hair loss, in particular, is causing me severe anxiety. I am seeking assistance regarding this matter. Dr. Suddith, who prescribed the Singulair, is aware of the side effects I have been facing.