sentir or siento
I believe it is Sientolo
i feel young = me siento joven
"I feel tired" would be "Siento cansado"
Me siento como
Me siento terrible
me siento burlado
"Me siento mal."
Me siento ignorado
"To feel" is the verb "sentir". Do not confuse this with "sentar", which means "to sit".
Te sientes como un niño perdido would be the best way to say "You feel like a lost child" in Spanish.
"No me siento bien."
Yo siento enfermo