Irritable baby, idk if she's sick or what?!

My 2 month old only wants to nurse, and then sleep. When she wakes up she starts whining. I'm not sure if it's a growth spurt or maybe she's sick? She has a little cough but no fever or anything. Her dad and I both had a cold recently but seems like this has only been going on today and yesterday. I hate feeling like she's uncomfortable or in pain..any suggestions? Or anyone dealt with this..I'm a FTM.