I Am Not Diabetic ,but Half An Hour After Taking

I am not diabetic ,but half an hour after taking food I feel that some thing like very small spores in my blood are rushing toward my brain. This rush is not just feeling, I it is rather like something physically I'm pinging my brain. I avoid over eating. I am 5ft 8 inc, maintaining 80 kg, moderatly hypertensive on amlodipine besilate 5mg for last 3 years.