Almost 9 years ago in 2007, when I was in my vacation and travelling in train, in mid night I had a feeling that train was rolling, Immediately I sat and I was holding the chain firmly and did not sleep the whole night. Very next day when I met doctor, he examined and said whenever I lie down, my pressure goes less than 100 and when I get up it goes above 120, That is the reason for this happening. Then I had some medication. I was told not to get up from bed immediately, but slowly turn one side, put one leg down on the ground and then both leg on ground. I followed for this for almost a month. Then it slowly vanished. I was later told this might be because of some shoulder bone pressing some nerve which stops blood going to brain for fraction of seconds and I was asked to go physiotherapist. He did some IR therapy and suggested some exercises and slowly I forgot that incident till 2015. In 2015, when I was cycling (prior to joining Goqii), I fainted on middle of road and lasted for few minutes and I was admitted to hospital. The discharge summary simply indicated Syncope. After that once in 2 or 3 months, I have giddiness for fraction of seconds, while getting up from chair or bed or coming out of car (basically when I stand up after long sitting). All X-Ray, ECG, ECHO, CT scan and even MRI shows normal.