Hello ethelmary,
Thanks for that info and choosing the Apple Support Communities. Based on what you stated, it seems you are experiencing issues with battery life on your iPhone. To help resolve this issue, please follow steps from these resources, like optimizing settings and checking battery usage. If you're still having battery issues on your iPhone, please contact Apple about further service options.
iPhone Battery and Performance
Contact Apple Support
Apple - Find Locations - Country Selector
Cheers!