Sick baby

My baby turns 6 months tomorrow and she has had a cold since the 18th. No fever but fussy, and extremely stuffy. It was manageable until last night. We were doing saline spray, nose Frida, zarbees chest rub, inclining her crib mattress. Last night though she got flushed cheeks and got really tired and didn't want a bath or anything. Today she has slept no more then 30 minutes total. It's Sunday so I am going to call the Dr first thing tomorrow but my thoughts are if she is sick...shouldn't she be sleeping more and not less?!? Between her cold, her teething, my six year old son and this time change I'm about to pull my hair out!!!!