I’ve got an iPhone 5s and with 11.0.3 and suddenly noticed that my phone started telling me it was full.  I looked at my apps and noticed System Storage taking up 13GB!  I tried offloading apps, clearing caches, etc, but that just increased the size of system storage.  I see others with t his issue as well, but I haven’t seen a resolution.  Any thoughts?  I’ve also noticed how my Apple Photos library will go from 5GB to 10GB and then back again - seemingly at random.  I’ve also noticed on my iPad 10.5 Pro that my Apple Photo library takes up 88GB , whereas on my older iPad 3, it takes up 7GB.   
Any thoughts on what is up with this? Getting ready to take a trip and don’t want my phone to be unusable.
Thanks,
Mark
	
		
			
		
		
	
				
			Any thoughts on what is up with this? Getting ready to take a trip and don’t want my phone to be unusable.
Thanks,
Mark