whats my body type?

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i can lose and gain weight very easily, i feel very muscular its just they are not very defined yet. i am 149 pounds and 5'3 or 5'4 i used to be too skinny when i always worked out and ate healthy. but i have alot of muscle just it's doesn't show much cause i got a little bit of fat over it.
but i am going to change that i lost already 8 pounds since a month ago