My 1 year old has these loss of appetite, fever, blocked nose, floppy eyes, high temp, sleepless night, vomiting and headaches i think, what could it be?

Prob viral infection: Symptoms you describe are common with viral infections, especially influenza or adenovirus. If your child is alert and will take some fluids or solids, treating fever symptoms for 2-3 days is reasonable, but fevers after 3 days should always be evaluated in a toddler. Also, if your child had an underlying cold with runny nose, and then developed a few, assessment now is indicated.