Deleted Text messages on iphone?

Every time I go to my messages from a certain contact it gets deleted. Then it will let me have a conversation for a little then delete those messages, And it's only from this one person.

Is my iPhone 4 Battery Draining?

Well… I will get to my point straight way. I bought and iPhone 4 in October, 2013 for My birthday. I been taking my phone to school and even when i go hang out with my friends and the battery life at that time was Fantastic! It used to be like Usage with 5 hours and Standby with 18 hours. Well, at the start of this year, it decreased. I don't know why, My result for the start of the year was, Standby with 14-15 hours and Usage of 4-5 Hours! Well, I went to my Service provider with my Warranty to check what was going and they asked me my usage and stuff like that, and i answered them, they said it was normal. Then i updated my iphone to IOS 7.1, the latest update. When i updated it to the lastest IOS the battery started to get better and i was happy about it! But then… From Tuesday (8/April/2014) It started to drop badley! (Screenshot of the bad drain will be shown) I don't know what's going on? Answer these question below too please. I done ressettting and everything i could do!
-Is it problem wiith the Battery?
-Is it problem with the IOS?
-When is the next IOS gonna come out?
-Is their a way to solve this?
-Can you replace the battery from a Local phone repair?
Is my iPhone 4 Battery Draining - 1

Added (1). If it is the IOS 7 issue… Is there away for Downgrading it to IOS 6 without Deleting any messages or Contacts?

How to apply this effect to my videos/photos?

I've seen people on instagram with the timestamp on their photos/videos WITHOUT actually using an old school camcorder… Is there an iphone app? Or program I can use?

Heres how it looks exactly

No pictures showing on Facebook on computer but they are there on my iphone?

Past couple of days, no pictures (ids, posts, anything) are showing when I log onto F/B.
BUT they are there when I use my iPhone.
I've tried to ask on their forum but I can't even get that to work.

Is this a sign From Above? To quit F/B and get a life?
but what if I'm quite happy with the life I have (more or less)?

anyway back to F/B, anybody else having that problem?

Looking for a laptop, Apple or Windows?

My whole life I've known nothing but Windows, because of witch I've thought Windows was superior. I knew everything about windows but all I knew (not sure if it's true) Apple laptops can't run.exe files. I want a rundown and the true facts of witch is better. I need a laptop, my PC is on it's last legs and I can't stay home alot and I wouldn't have considered it if not for my new iPhone (iOS 7 is beautiful). And most importantly witch is more affordable. I'm not going to blow all of my money on a laptop.

Do I have to give him back her money?

I sold an Iphone 4s to this girl. We met and she got a chance to see it, feel it out and test it. She was ok with the condition. Later that day I get a message saying that something is wrong with its software and that blah blah she wants her money back. I don't what the problem is that she is having and I used 40% of the money she gave me in alcohol.
What should I do?

Will waterproof iPhone pouches work?

So I'm going to a hotel with my friends in 2 days and I want to be able to take pictures in the pool. I would buy a real waterproof case like from Otterbox, but they're expensive and my parents wouldn't buy it and I don't have time to go anyways. So I was thinking of just buying one at the hotel, if they have any though, but if they do, would they protect my phone? The pools there aren't even that deep. The deepest pool they have there's about 5-6 feet. So would you think?

Bill Me Later virgin mobile?

Okay, so I want to buy the iPhone with Virgin Mobile but can't really afford $500. I see that there's a Bill Me Later option to buy the phone. Does anyone know how much I have to pay each month? It says "Annual Percentage Rate (APR) of 19.99%". But what does that mean? I'm not very smart so this is probably a really dumb question.