Tried to find sweet spot, something happend.

[BrokenHopes]

Hello. This is my first post. I have been practising trying to find the sweet spot. No luck so far. Today I tightend the scarf Im using for practise real quick, a bit above the larynx pretty close to my chin, a sharp pain suddenly came. Now its really sore and hurts alot when swalloing and nose is running. Does anybody knows what this could be?
Want to avoid it in the future. Thanks.