Getting fever often (around 100-102')

Hello, My daughter is 3yr old now. After stopping breastfeed, she is getting fever whenever exposed to cold breeze or cool weather. Observed if she doesn't wear sweater or full arms a d cap, she often gets fever at night on the same day. Every month one or the other way she is having fever. Other than this fever with cold and cough with bacterial infections. Her body temp raises with no.cold or cough. For 3days it lasts, I give her paracetamol as prescribed by our PD doc. I mean , it's so much stress to see her having fever often, sometimes when high temp of 101-102 on thermo she shivers while talking. Is this normal in kids growth process? All say it's a phase of the child to suffer fever often to boost their immune system.. I mean it's so not feasible to rely on these statements. Can anyone please help me? I'm sure many Moms like me feel the same. :(