What a sensible attitude to your medical condition and i do wonder how many people are taking drugs unnecessarily, particularly drugs that control high blood pressure.
I know little about your medical history or family history but being just on Amlodipine would indicate that your hypertension is not severe.
However.....a couple of your readings that you have given, the top one (systolic) is a little, shall we say, going in the wrong direction. a little high, so this must be taken into consideration.
There is no harm in continuing to monitor your BP, a good idea, but before you change your medication in any way,I would suggest that you check with your GP.