High Bp / extreme sleepiness/palpitation

My blood pressure stays at 160/95 and it causes dizziness/breathlessness/shakiness/numbness and extreme weakness. I tried taking lower mg (Telmikind 20 mg) but my blood pressure goes up again in the evening so I switched to 40 mg as advised . I take it every morning at 9AM and just recently my blood pressure went up at night even while on medication and I didn't get better so I had to take another pill. And after few days also same thing happened but I decided not take another tablet and my pressure went down after 2.5 hours. So the thing is even though I take medication every morning my blood pressure tends to rise in the evening and it lasts for minutes to hours . I've been on strict diet too , cutting down on salt , no oil , no meat except for fish and no junk foods etcs. I do light exercises almost everyday. One thing that also concerns me is that I get sudden extreme sleepiness in the afternoon or evening. I almost fainted few times too. Please what could be the reason.