In Conjunction With Losartan 100mg, My Gp Has Prescribed Felodipine

In conjunction with Losartan 100mg, my Gp has prescribed Felodipine ER PLE 5mg to try and lower my BP which has been in the range of 160/95 for the past few weeks. I took my first Felodipine yesterday and although I had been warned of possible side effects I didn't expect so many, so fast! Within an hour I had severe headache & neck ache. Flushed red face, constant urge to urinate, nausea, sleeplessness, and today I have slight tremors in my hands/arms. Should I continue with this medication? I understand that some of these symptoms may pass after I have been on this medication for a week or two, but I am dubious about taking anymore!