you've been off the meds for more than a week and your blood pressure is holding. That is awesome! However, your high anxiety levels might start affecting your blood pressure, causing prolonged blood pressure elevations or brief spikes. Do you think you can find ways to reduce your anxiety?
According to my 2007 PDR, Diovan does not accumulate appreciably in plasma following repeated administration. Nor is it distributed into tissue extensively, because it is highly bound to serum proteins. Abrupt withdrawal is not associated with an increase in BP.
Hctz is not metabolized at all and is eliminated rapidly by the kidneys. In the absence of reduced kidney function, no cumulative effects should be seen.
I hope you will be able to stay off the meds. Best of luck!