Could baby be sick?

Zoe

My son is 9 days old and sounds stuffy. His breathing isn’t wheezy it just sounds like he has snot stuck that won’t come out. I’ve tried with the basic nose sucker they give you at the hospital and I’ve been doing saline drops but nothing is helping. I’ve also been running the humidifier all day. His temp is 99.4. I was told normal new born temp is between 98-99. He’s not extremely fussy but he won’t let me put him down for more than 20 minutes at a time. Should I be worried or is this okay? Any thing more I could try?