Dizziness can be a hypo symptom.
When you say your blood sugar is a "little low" are you actually hypo?
Have you been given guidence on how to treat hypos?
Hypos are caused by too much insulin, either too much insulin to deal with the food or too much insulin because exercise or stress or illnes has made your body decide to use the insulin super efficiently. Youre on a mixed insulin so you need to understand how many carbs and when you should be eating them to deal with that.