IPhone 6 messaging problems?

Okay so my iPhone 6 recently has informed me that my storage is full. Then i noticed that my apps kept crashing and my messaging has been messing up. Sometimes it wouldn't let me see the text message and/or switch the order of the messages that were sent and not let me know when i got a text and its bothering me really bad. I assumed it was just my storage so i went from 3,000 pictures to 2,000 and its STILL messing up. If anyone has experience and knows how i can fix this id really appreciate it

Added (1). iPhone 6 messaging problems please help?

These kinds of strange problems can and do occur when there's little or no memory left. You can check how much memory you have used and how much you have remaining in Settings>>General>>Storage.

2000 photos is still a lot. After you delete photos, messages, emails, and apps to free up storage, you need to restart your phone so that it can reclaim that storage. Here's how:

https://support.apple.com/...s/HT201559