Yes, that's a pretty usual reaction to a really low hypo which has lasted some time before it was corrected. I was diagnosed in 1964, but had a succession of night hypos over several years as soon as I was put on a basal bolus regime. A dreadful headache, plus your entire body aching is fairly typical I would say. If you take it easy the following day, after a decent night's proper sleep you should feel largely recovered. I used to keep a bottle of Lucozade on a shelf in the wardrobe because that seemed to fix things faster. I would forget the sweets in this situation. Glucogel or Lucozade would be a better choice. You can get more down your throat faster and it can act more quickly.
Edited to add - Not the lower-sugar Lucozade on sale now ! You want the most carb-laden drink you can find, but one you like the taste of too. Have a read of the carb contents on whatever you like best and compare with some others. If your BS level is very low, you may be reluctant to drink stuff you don't like.