From last one year sometimes I feel sharp tickle in my mind and after that I feel restless and weakness, everything looks blurry. It mostly happens whenever I eat something which creates gas. I am working in a company and during my work, twice a month, all of sudden these all happen. It remains for 9-10 sec but the sensation remains whole day. I am not getting whether it's happening because of excessive gas problem or it is panic attacks. I have gone full body check up and the reports are normal.please suggest.