he doesn't sleep!!!

Lisa • mum of 4 beauties! 3 on earth and one playing in heaven x

this can't be normal....my son who is 8 weeks tomorrow has about 1.5hrs sleep day total and about 4/5hrs sleep at night and the rest of this time it's broken sleep accompanied by whinging,crying restlessness and upset! He doesn't have many settled "happy" periods of the day!! we have been told he has silent reflux but even with gaviscon it's no better!!!! I don't know what could be wrong 😣 any advise??