Hugo is 4 months old today

We have been living in Poland for almost 2 months.  The weather has gotten much cooler in the past week.  Mid 40's.  Both Henry and Hugo are sick, we are waiting to take them to their doctor apt at 19:50.  I don't like that it's so late.  Hugo has been coughing all day, he doesn't have a fever.  Henry has been feverish 2nd day now.  He is coughing as well.  Neither Roman nor Henry has ever been sick so young. 
Hugo does not sleep much during the day.  It's usually 30 to 40 minute naps, it's extremly difficult to put him to sleep espcially for me since he wants to nurse all the time.  Usually at night he is attached to my breast and that's how we get through the night.  He was extremly colicky starting at 6 wks of age until 3 months.  Once he turned 3 months he has gotten less fussy and cries less.  He doesn't spit up as much anymore although he still needs his bib 24/7 since he started salvitating.  I guess it's a sign that his teeth are coming through.  Couple of days ago I started giving him carrot soups, he does great swallowing.  He did very well swallowing today,  I usually give him one tablespoon.