Borrelia can not only affect the joints, but can solidify in the musculature and destroy the collagen of the connective tissue. Also in this case, it may be that the sufferers perceive the symptoms only as pain in the muscles or that it comes in the athlete again and again to strains and fiber tears. And did you know that people have Borrelia, who have never had a tick? Meanwhile, there are other vectors (disease carriers) in Germany that can transmit Lyme disease.