For the past week or so I have been having trouble with the storage on my iPhone. I would go to take a picture and it would tell me there is not enough storage avaliable. So, after deleting some unused apps it would allow me to take the picture. I texted the picture to a friend then deleted it to save space. Then, later that day it would read that I don't have storage again without me adding or downloading anything. This has been a contiual process for around a week. Why do I keep losing storage without doing anything. Is the phone just old and time for an upgrade?