Floaty feelings and ‘funny’ feelings can be related to blood sugar, both high and low. Also, if you’re fairly recently diagnosed, it’s normal to feel a bit ‘off’ as your body gets used to things.
You’re probably still making some insulin of your own, and that can kick in at random times, which might be part of the cause of your different results above. Also, many things can affect blood sugar - tiredness, hormones, exercise, illness, absorption, digestion, etc etc. Getting your head round that is hard but important. Sadly Type 1/LADA isn’t a condition where they calculate your doses and then everything’s fine all the time. Things change - from day to day, from week to week, from month to month. It’s frustrating but understanding that removes some stress.
As
@helli said, you don’t need to wait to do your two different injections. For example, it’s perfectly possible to inject your basal in your thigh, and immediately after inject your bolus/meal insulin in your tummy. They’re two separate insulins doing different jobs.