Is it worth getting my tires checked

I have a Peugeot 108 2018, about 2-3 weeks ago the tire pressure warning light came on. I had a puncture, got the tire replaced and all seemed fine.

However the light just came on again, went to go top up my tires and the 3 that weren't replaced were at 31 psi and the new one was at 35. The recommended PSI is 33.

Now all my tires are at the recommended 33 but should I bother going to get my tires checked again? Is the slight over-inflation of the new tire possibly setting it off? I have been driving this car for a little over a year and not had the tire pressure light come on once.