Baby movements

Is it normal for baby to have lazy moments? My baby is usually very active but he does have moments where his movements aren’t as strong as usual. I let and midwives and doctors know about this and none of them seem concerned. Even at my last appointment, at 32 weeks, the midwife said that it was completely fine as long as I do feel the baby moving, which I do. But should I be more stern in having them check on him just to make sure nothing is wrong??