welcome to the forum Pickles!
ref recovery being possible-
this recent study provides good evidence that people can recover even from severe late stage Lyme disease
Complete Remission in Paralytic Late Tick-Borne Neurological Disease Comprising Mixed Involvement of Borrelia, Babesia, Anaplasma, and Bartonella: Use of Long-Term Treatments with Antibiotics and Antiparasitics in a Series of 10 Caseshttps://www.ncbi.nlm.nih.gov/pmc/articles/pmc10294829/