She could have Chronic Lyme.
I have Chronic Lyme.
Chronic Lyme is often misdiagnosed as other diseases.
If you don’t treat it correctly…well…what doesn’t kill it only makes it stronger………

My first thought was drugs, and after reading the comments, i am now sure that they are for some mystery illnesses. The other big question is about Woo telling Sandra about the situation. My opinion is that Woo is good for it. The secrets comment makes him look worried, and the fact that she follows with “i wonder what yours is” and he looks really sympathetic, likely due to the fact he has to keep the secret of his talking from everyone but Sandra (and possibly her dad). I am probably not saying this right, but what i am trying to explain is that Woo does not seem like the type to disclose this information, and the circumstances make it less likely.

Why is having to take medication a secret? anyway, since Woo can talk, her secret is not really safe.

“My secret is that I know yours.”

eh who knows. raccoon secrets are best kept by raccoons