Had one the same & she was absolutely delusional. Inherited her as the GF of a great tenant that bailed & left her. Within a month she claimed mold was making her sick & said she had pics which were later admitted by her as being from a Google search.
Tests were negative, but she said it was because she scrubbed the wall?? The same day of testing we painted the entire bathroom (admittedly it was due after 8 years). Next day she said she took her own sample & it was +ve for mold on the freshly painted wall. That spore dish looked a lot like another pic from Google. Then she said she had medical bills for mold 'poisoning' but her new BF admitted in discussion that she was just suffering from her yearly allergies. He showed us the meds she said were MD prescribed & they were in fact just OTC antihistamines.
We had our attorney terminate the MTM, so she quickly offered via our attorney to pay the $130 she held back for cleaning, her MD copays & meds, also pay the rent overdue for that month. We did get all the arrears but processed the termination. She gave up, vacated, left a mess & a $4,000 sleep number bed/mattress that she still owes for. We kept the old BF's $1,200 security deposit.
A couple of months later she sent a text to my maintenance guy asking for a landlord reference that she needed to get another apartment.