I Believe Enbrel Is What's Causing My Urinary Tract To

I believe enbrel is what's causing my urinary tract to be irritated. I've been tested for uti twice, both times clear (I've also had uti in the past - several times before I was on enbrel - and this doesn't feel quiet the same). If it is indeed enbrel that's causing this, without going off enbrel (I've been on it for 5 years and it gave me my life back! Diagnosed with ankylosing spondylitis), what else can be done? I've been taking a soothing bladder tincture from my naturopath with no relief.