Blood pressure home moniter ? Welch Allyn or Orian ? Blood pressre ? too

Is there a "best" home one ?

I have been on 40mg of Diaovan but recently lost 20 pounds and started biking everyday. My pressure went down to 107/67 so I stopped the meds for 2 months, then my pressure went back up to pre med numbers 139/90 aprox. So I started the meds everyother day but it doesnt seem to be working so I am going back to every day.

Doesnt it seem like I should be able to stop all together ? How long does it take the drug to stablize the pressure after restarting ?

Thank you

Im calling the Dr tomorrow because im still at 127/82 taking the meds again, unless it takes a few weeks after restarting the meds to get it lower ? Again with the weight loss and excersise I would think it would be lower ?

If this drug was working before it still should right ?  Do you think the auto moniters are as good as a cuff and stethoscope?