I have been having episodes lately where I have been feeling like passing out about two hours after eating so I bought a blood tester from the store. Normally my level is at 90 before eating. After I eat it's at around 135. Just recently I have been getting the weird feelings before I eat. I just tested my blood as I will be going to get dinner soon. My level was at 175. What is going on? This reading was taken four hours after my last meal with no snacks or drinks of any kind inbetween. Please help!