If you think about all the other factors you mentioned...
Impacted wisdom tooth (ouch)
local anaesthesia
stress
no food
no caffeine (the fact you mentioned it makes me think you would normally have coffee or tea for breakfast)
... it's any wonder you're not feeling great. Having an impacted wisdom tooth removed is no walk in the park. It's normal to feel sore and get a headache or feel a little funny as you say.
The pressure the dentist used would probably have impacted your jaw more than your skull. I honestly doubt that the way you are feeling post op is anything to do with your skull changing shape.
I can't remember it ever taking a day and a half for the numbness to wear off from the anaesthetic. That seems a very long time, but it just could be that I've forgotten.
Please don't think of yourself as an hypochondriac. We're all here for support and information and we're not here to judge you or think of you as an hypochondriac for having the concerns that you have.
If you want, you could even ask on our
Dental Forum. I'm sure Bryanna would be happy to ease your mind about these things too.
I actually would be more concerned about my jaw and the nerves around my jaw than my skull... but that's just me.