The conversation between human and AI assistant.
[|Human|] I feel light heade all the time light sensitivity had all tests done they keep coming back normal I feel as this is taking over my life I can t drive can t run can t go shopping I start to get more lightheaded when I walk its ruining my life I don t know what to do?
[|AI|]  Hello, It would explain that if lightheadedness is related to standing up position, this could indicate possible orthostatic hypotension. In such case a Head-Up Tilt test would be necessary.  I would also recommend consulting with an ENT specialist in order to exclude a possible inner ear disorder and performing a cervical spine X-ray study.  Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor. 
