Welcome to HCM
We understand your concerns
I went through your problem description. You must be able to distinguish about what is happening to you and what not. I really feel these symptoms are simply confusing and conflicting.Dizziness
do occur when you suddenly get up from a sitting position or laying position and blurring vision also occurs. But these stays for some one minute or so. Is it what you are experiencing? Then nothing to worry. Do sit up exercises 20 times every day and you will be alright.
Other wise, you should consult a physician to get expert advice after checking your vital signs
Hope this answers your query. Available for further clarifications.