Fussy Baby cures?? **UPDATE

Help my baby is almost always fussy!! Gas drops and Gripe water rarely help. He cries like he's hungry but then hardly will eat. He rarely spits up at all. He can't sleep if flat on his back, he will just cry and cry. Will only sleep on back in elavated position (night), and during the day I let him sleep on his belly (in my presence). He burps ALOT and easily during meals. Always is getting hiccups. And he twitches/jumps alot, even if there wasn't a loud noise or an obvious cause for him to have "startle response", it always wakes him, and then fussing starts all over. Rocking helps sometimes, but stops helping when you stop rocking. He takes a paci and it helps, but again not for long. Massages don't help. Baths don't help. His 1 month check up is tomorrow morning, but thought I'd get your advice tonight.

Facts about my baby: 

*He's 1 month old (1 day old adjusted)....spent some time on CPAP after birth, otherwise healthy

*He's exclusively formula fed (don't judge me, you don't know my story)

*His formula is milk based (Simalac Advanced, the blue one)

*He's my second child

UPDATE: Doctor says my son is lactose senstive, and has severe silent reflux. He switched formulas and says if that doesn't help, then he will add Zantac