Hey there Carlingford, congrats on the 45 days!
Yes I think this is normal. Sounds like the anxiety that PAWS comes with is breaking through when you have a triggering event perhaps like when your mind remembers the calming effect of the alcohol. Generally I've had small tremors over the past 4 months being sober, but they have subsided quite a bit. Only time they seem to come back is when I'm having some light or moderate anxiety.
Glad to hear you're doing better as time goes by.