He has been crying and is fussy throughout day and night. He sleeps for very very short durations. Last night he was up from 12:30 till 6 in morning and kept crying. I gave colicaid and when that didn't seem to work, gave cyclopam but that didn't do anything either. Had to carry him throughout to calm him. I checked for other issues like fever, room temp, wet diaper and all but he doesn't have. He kept crying unless there's nipple in his mouth. He's 7 weeks old and weighs 5kg. His pee count is 10+ per day. Is this sleep regression? Should i be concerned about this bring some illness?