I was going to reply saying call the PUK helpline to speak to a PD nurse... (but Edwina beat me to it!!).very helpful and easier to get in contact with than some other sources of help!!
Always very helpful to me when I had a question in relation to my mother's PD. In my experience PD is a very fluctuating condition and it takes time to work out when it is best to take the meds according to your needs...eg Mum 's were timed to make it easier to prepare meals. Some days were better than others and initially it all takes a bit of getting used to. Other conditions are more predictable!
Sounds like you are busy, (mother of 3!) and so perhaps new diagnosis, new meds regime, fluctuating condition and the fluctuating demands of 3 children are all interplaying here.....
I recall Mum used to 'beat' the lighthead/wobbly legs bit - by standing up and then staying still for a bit before moving off to do whatever!