Definitely you can stop your hrt without a doctor's order or agreement.  I'm glad that you don't seem to be having symptoms even with lowering your dose by changing the patch less often.  As you make this decision, Massa, you will want to consider the impact of estrogen on long-term health issues.  It's not just for managing symptoms.  Estrogen is beneficial to heart health and brain health, protects our bones, significantly lowers the risk of colon cancer, maintains vaginal and bladder health, to name just a few areas affected.  If you decide to continue for this protective effect, you could ask for the .025mg instead, lowering your dose further.  You always want to be on the lowest dose that works.  If you decide to quit, I'd cut the .05mg patch in half and just half a patch for a couple of weeks just to wean your body down slowly. Hope this information is helpful to you. Wishing you good health, Sandy