Ryan Sutter, 46, has been looking for answers as he continues to suffer from a mysterious illness for months.

On Tuesday, the former Bachelorette contestant, opened up about his health issues in a series of posts on Instagram, providing details about a variety of symptoms he has been experiencing while undergoing tests to diagnose the mysterious condition.

Ryan said he began feeling sick after starting an 18-week training course with the Denver Fire Department in February.

He wrote, “Towards the end of that process I felt more and more worn out and began feeling occasional ‘flu-like’ symptoms. I was tested for COVID multiple times but never tested positive. I completed the academy and believed/hoped I would begin to recover and feel better.”

“It’s been five months now and, if anything, I feel worse,” the firefighter continued. “Though I am functional and continue to work my regular fire schedule, I am experiencing a battery of symptoms which include: fatigue – sometimes almost paralyzing, deep body and muscle aches, fevers, night sweats, full body itching with no rash, headaches, neck and throat swelling, congestion, lightheadedness, nausea, and just general all around not feeling good.”

Ryan has undergone “several blood tests and a CT scan,” and those procedures determined that he has “a high ANA Titer and low WBC but nothing else has proven anything conclusive.”

“I am not taking any medications, maintain a healthy diet and am doing my best to get rest,” he continued. “Most days I feel about 70%. Somedays [sic] I feel a bit better and somedays I can barely get out of bed. I don’t believe I have anything contagious as no one else in my family has been sick nor has anyone I have worked with or associated with been sick.”

In another Insta post, Ryan wrote, “I appear to be sick for some unknown reason. The struggle to find answers in the medical world and support through the insurance industry is frustrating and lacking.”

“One must truly and persistently advocate for himself/herself if they hope to find answers or, at the very least, rule out possibilities. I am concerned that we are bearing witness to the effects of our lifestyles and the relative lack of understanding as to how we live on a daily basis influences our health and well being and the health and well being of others,” he continued.

Recently, his wife, Trista, 48, told fans in an Instagram post that her husband has been “struggling for months” with a mysterious illness.

“And, I’m struggling. This guy…my rock, my best friend, my hero, my love…is struggling,” she said. “Not everyday [sic], and not to the point that he can’t work or cook or exercise or be with family, but enough. We’ve been struggling for months. Struggling to get answers.”

With a huge sigh of relief, Trista went on to say that the family recently “found out that Ryan doesn’t have cancer,” though his doctors are yet to conclude a diagnosis. The article originally appeared on Health.