My daughter is constantly staying home from daycare and I swear the daycare is making stuff up to keep her home. Advice?

I don't even know where to begin. My daughter started daycare 6 months ago. In that time, she's had 42 days off. She's been sent home with a fever (but she didn't have a fever when we got home). So she's off the day she had a "fever" and the day after. She gets sent home all the time for diarrhea. This kid has never had diarrhea except at daycare. Any time she gets sent home because of diarrhea, she never has it again at home.

She gets sent home for a cough, runny nose, or "not looking well" all the time. Again, 42 days since the start of September. She has been legitimately sick three times, so even if each time it was 5 days, that would only be 15 days out of those 42!

I just feel like the daycare keeps making stuff up to send her home. There's no way she has a fever of 38.5C and then when I pick her up within 40 minutes, she's 36.7C and the fever is gone and doesn't ever come back. There's no way she only has diarrhea at daycare.

Does this sound suspicious or am I overreacting?