this is pretty normal for infants. what you have to do is focus and listen to her very closely. im of the mind that every mama can figure out what their baby needs instinctively. you can look up things that talk about baby's specific cries each having a meaning, theres a particular sound to a hungry cry, pain cry, fear cry, and misc. but sometimes even if you cant pick it up, focusing in on her and relaxing can sometimes just help you to think of something and figure out whats wrong all just from within yourself.
a few things to make sure you cover the basics; shes not too hot or too cold (check the back of her neck, it will be sweaty when hot and clammy when cold), make sure you offer her some formula/breastmilk (growth spurts require LOTS of food almost every hour or more), pump her legs, massage her stomach in case she has some gas, use baby massage in general for relaxation and calming. also, check to see if shes got tags or something poking her. some kids are just hyper sensitive to tags, and i dont blame them; tags are uncomfortable!! its tricky to remove a tag, but the good news is that a lot of kids clothes these days are made tagless.
try a pacifier if you havent, do not give bottle in bed when shes alone, try a snuggly bear or something, put something of yours in bed with her that has your smell to see if that relaxes her,
she most definatly needs naps so do not forgo those. i would think at her age she still needs 2 naps, so make sure to put her down before shes exhausted; good times are around 10 and again around 2 or 3... something like that. a good first sign of tired that you can watch for is rubbing eyes. those itchy eyes are a great indication of getting tired.
try a sling! the moby wrap is a lifesaver. sometimes babies just go through phases where they just need extra time and touch. it wont last forever, but you wont regret going the extra mile for her..
one thing i do know is that its likely shes not manipulating you. shes trying to express some kind of need. its a guessing game trying to figure out what that is, but dont get the impression that you have to just leave her on her own because thats just going to scare her.
the other thing i can think of is maybe shes got some teething or other pain. try some teething gel or tylenol to see if that calms her. also gas medicine would be a good idea to try also just to see if its some other kind of pain thats bothering her. if shes having trouble with her stool, try making sure shes getting plenty of water during the day so that shes hydrated enough to have nice soft stool.
and when in doubt ask your doctor.