Hydrochlorothyazide symptoms and conditions

I was put on 40mg per day of Prednisone for a sinus infection. I felt good for 4 days, then very weak and tired with headache and nausea. The doctor did not prescribe tapering off, just stop after 10 days. I quit after 9 days. Horrible withdrawal, very weak, bad headache, terrible nausea. My blood pressure dropped from 120/80 to 96/40. I had been on 25mg Lisinipril and Hydrochlorothyazide - doctor stopped that. Blood pressure now 104/60. Still very tired. Headaches almost gone, nausea gone. Complete blood panel tests all normal. Dr says symptoms will go away. It has been 3 weeks since I stopped the drug. Some fluid retention, but that is going away. Has anyone experienced LOW blood pressure with Prednisone?