Hi
Welcome to the MedHelp forum!
Increased heart rate, restlessness etc can be due to Hyzaar. Yes, there are many other drugs besides hydrochlorothiazide and losartan (Hyzaar) which can be taken for high blood pressure. Please ask your doctor to change Hyzaar, maybe increase the frequency or dose of Atenelol as it was suiting you.
However, please do not make any changes yourself. Buy a home recording BP instrument and keep a check on your daily blood pressure in the morning and evening.
Take care!
First of all, research your meds--even if you think they are insignificant.
Vitamin D and multi-minerals will effect your heart rythm. There is a fine balance to be kept when you are dealing with vit D, calcium, magnesium, etc...
Hyzaar can cause unusual tiredness, along with a lot of other things. (it does not mean it is the cause, but it can cause it)