If the 'circular' rash that you had was a 'bull's eye' rash, then that would indicate lyme w/ certainty. Only 20%-40% of victims have the bull's eye rash. So, the lack of it does not rule out lyme. However, there is NOTHING ELSE that causes a bull's eye rash. Did you have any photos taken of it?
The general consensus is that if you have a bull's eye rash, you have contracted Lyme. And it needs to be treated asap, regardless of any tests. In fact, the general consensus is that if you have a bull's eye rash, there is no need to test for lyme. Because it means you have it.
Bit 1972: Acute and chronic tonsillitis, UTI, miscarraige, appendicitis, hypoglycemia, chronic neck pain w/ crushed vertibrae, chronic severe back pain, mitral valve prolapse, depression, resolution?
Bit Mother's Day 2007: Lyme, Babesia microti, hypothyroidism, EBV, HHV6, Parvovirus B19, low adrenals &misc other hormones, depression, anxiety, more of the above.