Check your diet, neuroinflammation is caused by nutrient and vitamin deficiencies and can affect speech and general cognitive abilities. If you found yourself eating fast food and junk much more within the past 1 and a half months, either stop and eat healthier or supplement with vitamins and minerals. Specifically neuro friendly, like vitamin B-Complex, Magnesium, and Thiamine. Also look into the possibility of it being a Dopamine Issue. I solved my stutter by stopping a porn addiction I struggled with. For me, it was a matter of normalizing my dopamine levels. I personally believe Dopamine to be one of the main culprits for Stuttering after years of research. If you would like to further discuss or have questions about anything , feel free to PM