<s>[INST] I understand a lot of people deal with this dizziness if they get up to fast but I think mines worst. Like when I get up, I have a blurry vision and sometimes even total blackout, my body feels week. The back of my head feels warm and tingly, it was weird but I could still stand up and even walk. It clears out in a few seconds and I couldnt actually recall what I did during that temporary blackout. I googled it and the signs are very much alike to this disorder, called presyncope? Am I correct? Is it dangerous? Is it a brain trauma? Does it have anything to do with anxiety disorder? [/INST] Hi, Thank you for posting your query. Your symptoms are indeed suggestive of presyncope. As such, it is not dangerous, however, we need to find out the underlying cause. This could be related to low BP or fall in BP when standing (postural hypotension). Please also check your blood hemoglobin level, as low hemoglobin can cause similar symptoms. Anxiety can contribute to the symptoms. Please get back if you require any additional information. Best wishes, Chat Doctor. Ly/ </s>