Desire Hd

Im having a very annoyin problem with my sent sms. Sometimes when I send large text msgs, my phone will part mix the sent msg with another msg that I had sent to the same person months ago. The message that it mixes the current msg with doesn't even have to be stored in my messages, it could be from a msg that has been deleted!!! So basically, the person recieving the msg gets 2 msgs mixed together!

This is just one in a very long line of annoying bugs and problems im having with my Dhd. 5 years i owned an Iphone with not one problem. Im on the verge of getting rid tbh.

Has anyone experienced this or have any solutions to my problem?? Thanks.