I had a similar experience in March. My blood pressure was typically low but began spiking. I used to be a marathon runner but bad knees have put me on the hiking trail instead. I tried low salt foods, reducing alcohol intake (alcohol is a diuretic and will increase your BP like Tom said) I took off some weight and it helped but didn't get me down to where I wanted to be. My Mom died of a CVA and my Father had chronic heart issues so I didn't want to take any chances. I Zoomed with my doctor, I showed him my BP readings over the course of several weeks and he prescribed lisinopril 10 mg. After 2 weeks 10 mg didn't reduce my BP low enough so we upped it to 20 mg and all is well with my BP steadily at 110/72. I do get an occasional episode of orthostatic hypotension, a common side effect, but that is manageable. By way of complete disclosure I worked for Merck, the inventor of lisinopril for 25 years and did some of the early toxicology work on lisinopril. Its a good drug with few side effects. Champs talk to your doctor and don't delay getting on some medication.
Tell me about kidney side effects. My doc said it can protect the kidney, but in kidney crisis, it'll hurt the kidneys.
I went off lisinopril a month ago, and my kidney function improved. Could be coincidence though.