Am I the only one who can't post pictures?

catsi • 19. pro-choice, pro-love.
Is this a technical problem with the app or is it just me? 
​I have the options to "choose from library" or "take photo" but when I chose an option, it just slides back down. 
​I deleted and re downloaded the app, restarted my phone, accessed my photos and camera from my settings, I even updated my whole phone in general. But still nothing. 
​I have an iPhone 5 if that has anything to do with it?  
​Has anyone else experienced this? And how do I fix it?