Jan I think it good to go to the kidney specialist as artery changes there can be a culprit, also a good hypertensive specialist seems to be in order. There are many reasons for her symptons that may not be PD related. My husband (parkie) has always had a labile blood pressure also. We have given him his slow release medicine of course but added in a plain dose or 1/2 of one (his being cardizem) when the BP peaks. With the TIAs she certainly deserves the best of referrals Good luck to both of you with this trying problem added on top of PD. Mary CG Mel 76/12