BP drops

Hi my husband has been diagnosed as having features of parkisons by older adults but minor ones and been put on a long list for a DAT scan. Symptoms developed since he sustained a subarrachnoid haemorage in a cycling accident with a van 20mths ago.
Currently noting his bp drops in the morning about 11 and he feels spaced out for a few hours. Could this be parkinsons symptom and what could he do to correct it. He has rehab for accident and now finding it difficult to do. First post so just to say hi to all

I think some of meds can cause BP. to drop?
Speak to GO to see what he thinks, there are other things that can cause this.