hello
sorry to hear about your family troubles
stressful life leads to various troubles like increased blood pressure , headache etc etc
as for your husband ,
parkinson disease is not curable .just the symptoms may be reduced so you need not switch on doctors
as for yourself , maintain healthy habits
following things may help you reduce your stress levels and hence other associated troubles
1.go for a walk in the morning
2.do some yoga
3.take lots of fruit juices
4.avoid too much of tea/coffee
5.also if possible join some
meditation class
6.take some sweet after food to maintain good sugar level
7.you may even join some hobby classes or can do some gardening
also you can help your partner to do all of the above
you may even pay a visit to a psychological counceller along with your husband for proper councelling
best of luck