should i be worried? i smoked for 3 months, 2-4 sticks every other day. should i get a general check up?

should i be worried? and should i get a general check up? (x-rays, mri, colonoscopi, blood work etc?) i smoked for 3 months 2-4 sticks every other day as social experiment, never got addicted havent smoked for about a month now and no cravings at all. should i go to the doctors and schedule a full body work up (or whatever they call it, scans etc,) ? im sort of hypochondriac so im really curious if i have to go get myself checked or detox or what not. any input much appreciated. thanks in advance for all the answers

additional info: my health insurance is comprehensive, i have no prior medical issues, athletic, 19 years old, male, vegan, 10%bodyfat, california us, and history of lung cancer my dad, and i dont have addiction tendencies, never did drugs, i work out, eat sensibly, a bit hypochondriac, sort of germaphobe, 2 friends that smokes religiously (not so close friends i see them about a twice a month for dinner or lunch)

should i be worried? or is there any traces or symptoms that i can look for that manifest that it has already deteriorated my health (lungs heart kidneys etc?) is it too late? lungs already toxic?