trying to find out if i have diabetes

Hello, all i dont know but i think i have diabets. I was told that i
ways border line in my 20's. As of now i am 52. I have looking around
the internet at website about diabetes. And every it's looking more
like i may have it now. I will be talking to my doctor about soon. I
picked up a meter to see what i would come up with.Here are some of
the readings i have got for my frist day. Before breakfasts 147, after
167, lunch before 130, after 134, dinner before 105, after 143 bed
time 142. What do you think?

.