It feels like a burning/fizzy sensation in my left temple side on my brain actually in my head if that makes sense! I can feel dizzy with it too.
Sorry for my delay in replying,,,laptop keyboard is not working so in manual mode.
No not tender, just an internal feeling of unbalance and a feeling of pressure at my left temple, also pins and needles in my left finger and thumb apparently a ganglion on my hand but that is not diagnosed yet.
Oh dear, I did wonder that myself about ,maybe MS?