Hi Kaylz,
I hope that your hypo is sorted now. I would not worry too much about spiking a bit as the key thing when hypo is to get sugar in and numbers up. A high reading later is often the result of this, but is correctable at the next meal if it is serious and if it is only slightly above where you would like it to be then it may well rectify once you have bloused as usual and eaten a meal. These things do sometimes balance themselves out afterwards I find.
I still find hypos scary now, 15 years down the line, but they are a part of life with type one diabetes and you learn to cope with them as best as possible.
You sound to have reacted well and dealt with it ok. Hope you are feeling better by now.
Curlygirl