Could gender identity actually be medically harmfull?

My wife recently had an appointment with her doctor for a simple annual followup. When she came out of the appointment he texted me this:

W: Wow. What incredibly stupid questions asked at the dr office. My sexual orientation what I identify as. Used to be taboo to ask ethnicity now they want your sexual life. Time to find a new dr. 

ME: I’m not advocating the doc or those questions at all, I just wonder, could it be those types of behaviors that can have an effect on your health and therefore knowing helps in how to treat a patient? All the more need for strict doc patient confidentiality and to get a grip on your gender.

ME; I can see the commercials now:  "... don’t take DopperEnz if you experience chest pains, are being treated for high blood pressure or occasional gender identity confusion. These conditions could interfere with DopperEnz and certain side effects could be more pronounced and in certain cases, even death could occur..."

Just why are they asking these questions these days? Could there actually be a link between your sexual orientation choices and your health from a medical standpoint?

I have no problem knowing what gender I am. My DNA tells me and most importantly, it's how God created me. To want to be some gender other than your DNA dictates tells me there is a much deeper rooted issue.  And those issues could lead to medically detrimental consequences.