Can being over appreciative be bad

Hi everyone, I’m always expressing to my therapist how I appreciate her & her helping me as well as thanking her or telling her she’s really great at what she does. Every time I genuinely meant it, I’ve always been a every expressive person. But I’m afraid I’m doing it too much, she always responds with energy but last time she was cold or idk seemed creeped out. Maybe I’m just over analyzing it, but I’m really stressed about seeing her again I’m afraid I creeped her out or it started to annoy her. Any thoughts would help:,)