Nerve damage effecting tongue, muscle, swallowing.

Hello, Back in 2015 /2016 I had tonsil cancer after going though chemo & radiation. (I'm cancer free :)) but I do have nerve damage from the first time I had radiation 🙁 my hold body is affected. My neurologist explain to me, it's like a extension cord the treatment I had went through all the protective layers of the ext. cord. How I explain this is like you body is a sleeping fleeing, like your foots or arm is a sleep and you shake to wake it up. My question is now after 7 yrs or so the nerve damage is now effecting my speech, nerves in tongue and the muscle in swallowing. Please has anyone going though this ?