After going through history Obesity and hypertension
are there symptom which you describe could be a papitation due to fast heart beat or premature heart beats. It occured when you are in sleep it could be spontaneous. your drug belong to beta blocker
group ,One should not miss the dose of such drug which may cause palpitation
and rebound rise in BP. Suggestion to you would be Salt restricted diet,avoid processed food items,Fatty and high calories food must be curtailed and some kind of physical activity to reduce weight .Discuss with treating doctor if you need any dose adjustment of BP medicine. Avoid alcohol or tobacco in any form if you take? even reduce tea or cofee consumption. I hope you will take care of your health.