My husband suffered a severe concussion about 6 weeks ago. Been seeing neurologist every two weeks. Severe by way of loc hospital stay for 5 days. Diagnosed with pcs and trying meds no improvement. One concern is when he leans his head forward ( chin to chest) he gets a tingling sensation in his back right side just near bottom of shoulder blade that also goes to his right chest. Soon as he tips his head back it goes away. Nero is concentrating on his headaches still non stop. Dizyness blurred vision. Nero has not even attempted cognitive testing as he knows my husband is no where near ready for that yet.

My question is this knumbness ( tingling ) when his head is tipped forward any thoughts? Thank you