Spontaneous Trigeminal Allodynia (STA) occurs within ~50% of male Sprague-Dawley rats, presents symptoms analogous to migraine and may be alleviated by migraine treatments. Relaxation-enhanced MRS implemented in the female rat thalamus at 21.1 T examined metabolic effects of STA using a nitroglycerin-injected model of migraine. It was found that STA generates glutamate/glutamine and limited lactate responses with even saline injection. However, the STA response is rendered negligible when given a conventional dose of 10-mg/kg nitroglycerin. Future spectroscopic examinations of neurological disorders, particularly those focused on excitotoxicity/neuroprotection, should account for this potential effect.