Felt tired but fine after a long day. Stopped at CVS to get some pet food. While walking through the store suddenly i could hear my blood pounding in my ears and I felt like I was going to faint. My vision blurred and I felt like I was hallucinating. I was afraid I was going to fall and sat down and called my husband to come get me. I was dizzy and afraid to get up for fear of falling. The dizziness lasted about 40 minutes. On the way home I felt confused and had a hard time putting together sentences. I though I might get a migraine but didn t. I haven t had them in a long time. Currently I feel fatigued with heavy limbs, Felt fatigued yesterday and went to be at 9:00 and rose at 6:30am. I am currently being treated for hypothyroidism that I have had for over 10 years. They upped my dosage 6 months ago and I have been experiencing a racing heart on and off. e-mail address: YYYY@YYYY