Help messaging text super large

[sark9handler]

All of a sudden, my text fields are huge letters that are 4-5 letters per screen wide. Nothing has been changed to my knowledge.

 

[SebaKL]

All of a sudden, my text fields are huge letters that are 4-5 letters per screen wide. Nothing has been changed to my knowledge.

Perhaps you have enabled the option to change text size using volume key.
Press the volume keep up and down and watch the message.

To turn it off, open the messaging app, go to settings and scroll down to Display. Uncheck "Use The Volume Key".