Losartan Side Effects ?

Hi, I have been taking Losartan 50 mg for 4 weeks, I was previously on Amlodipine , but had to come off it due to swollen ankles. The past couple of days I have started to get a sort of prickly itchy feeling all over my body, but no rash. I also feel a bit “down” and I’m not sleeping too well either. Could this be the Losartan? Can it take a few weeks for the side effects to show up?

It sounds like symptoms of anxiety.