Th singe in your nose was the CO2 you get a wiff of. It tends to 'burn' the mucos membranes a bit in the nose. (If you've ever had to lean into a near empty dry ice bin to scoop out dry ice you'd know what I am talking about). So that part is quite normal.
The temperature that you fermented and the choice of yeast may have created some higher order fusel alcohols. These alcohols tends to burn a bit as they go down. Not to mention that when consumed in higher amounts give you a wicked headache (no comment).
Scottish ale should be smooth and malty. It typically is presented in three strengths all of which are low to medium alcohol. They are normally session beers. There should be pronounced toffee and dark bread flavors. Scottish ale is very pleasant and highly drinkable.
Scotch Ale on the other hand is intended to be higher in alcohol and I can see that if your ferment wasn't done well you'd have some burning.
Depending on the age of your sampling (likely early as you were talking about wiffing the fermentor) I suspect got into the beer early.
In my experience, scotch and scottish ales take some time to balance out right. Even the mildest forms of 60/- scottish ale.
So give it some time and/or watch the fermentation temp next time around.