Could i have a glutamate sensitivity if i react to foods high in natural glutamates as well as msg in takeaways. is there a blood test to confirm?

Yes and No: The main way of determining if one has glutamate sensitivity is seeing if they react badly to eating glutamates. I know of no blood test. Taking vitamin b6 (about 50 mg/day) may reduce your sensitivity. However there is significant and concerning evidence that glutamates are toxic to everybody! see http://bit.Ly/1mph0mx ; http://www.Naturalnews.Com/specialreports/aspartame_truth.Pdf.

Glutamate allergy: Msg reactions are not an allergy but can cause a syndrome including headache and facial and chest pressure which can be distressing but is self limited. While foods with artificial monosodium glutamate are labeled, many foods contain enough naturally produced glutamates to cause symptoms. These include yeast extracts, hydrolyzed protein or even natural flavorings. I know of know blood test.