<s>[INST] I m 19 years old, 5 2 , and weight approx. 140 lbs. I don t have any notable medical history (but mostly because I don t go to the doctor very often). My problem is really sudden and terrifying dizziness bouts that happen occasionally. I ll be sitting in front of the computer or in bed reading, when I ll feel like the world decided vertical was better than horizontal. Beyond the reversal of up and down versus left and right, I ll be completely conscious and more than terrified. What s happening? [/INST] Hi, Thanks for writing your query. Your symptom of dizziness appears to be due to cervical spondylosis. This can occur due to improper position of neck while working on computers for long periods or reading while lying in bed. If you have to work on computers for long periods, you should take care that your neck should not be too much bending forward. Same precaution you should follow while reading. You can take Betahistine 16 mg 2-3 times a day for relief from your symptoms. If pain in neck is also present, you can take painkiller like Ibuprofen one tablet twice a day after meals along with a muscle relaxant like chloraxazone. Also get yourself examined and investigated by an Orthopedic. If the symptoms persists, get an MRI of your head and neck done. I hope this is helpful to you. Thanks. </s>