If you clear your data (not cache) you will also lose access to your npub if you didn't make a backup so watch out.
Discussion
Backup of your nsec I mean
Looks like it is half cache and half data, this means I have sent 2.5gb to nostr? How on earth?
It happens to me also. If you have your Nsec, don't log out without having your secret k with you.
I usually clear cache, log out, uninstall and login. Never lost any info. Just need to connect lightning and set again the amount of sats and emoticons I use.