My MD offers lab tests for Chlamydia, Bartonella, different strains of Borellia, Yersinia, Ehrlichia amongst others, she also offers tests for HPV and Mono. To be honest: I have no clue what is causing which exact symptom, it's also often the immune response / inflammation that's the reason for the pain and other problems.

Edit: forgot to answer your question. yes, in my case it was episodes of joint pain, neck stiffness, lightheadedness, heavy fatigue, numb fingertips, skin problems, heavy mood swings and more with symptom free times in between for more than 20 years - often triggered by stress but not always. And the symptoms got worse with me growing older.

The condition is not easy to diagnose and you need the right specialist, there's lots of snake oil out there and treatment is longterm and without a guarantee to cure 100%.