Re: No quality of life
From the post, I'm wondering is there a bigger issue going on here than just anxiety. Certainly, you don't report any symptoms which I think would benefit from investigation (perhaps the flushing, but you've had tests, presumably for that).
Are you unhappy with your relationship? I was, until August 2018, in a relationship which then ended that month after 3.5 years. And I know towards the end, I felt the same way - that is, I didn't want to be intimate and even the smallest of things annoyed me. This then caused arguments, and I noticed I was more anxious and unhappy in other areas of my life as well... Following the break up, I slowly but surely became happier in other areas of my life. So it may be worthwhile asking yourself "are you happy?" in your relationship, because that can have a massive "knock on" effect...
Good luck
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Healthcare Professional with Health Anxiety
Be kind, for everyone you meet is fighting a hard battle