Pregnancy induced hypertension

I’m 6days pp and my blood pressure is all over the place ranging from 170/110 to 128/78 I’m on meds for it, since Friday(4days pp), but it still reads high. Then after 1/2 hour it’ll decrease a little then a bit more and a bit more. I haven’t got pre-e bloods came back normal but I’m constantly so exhausted and I just want to enjoy my little one. Anyone had a similar experience? How long did it take to settle ?