A gummi treat

Is my body out of sync or what? All i got out of 3 tries of a weed gummi treat(3 strips) was sleepiness(1st time) but hard to sleep...a slight heartbeat increase n pressure. The 2nd time...fast heartbeat n headache...unable to sleep. The 3rd time very much decreased rapid heartbeat or pressure/headache...plus no sleepiness. On all 3 attempts..no feeling high...keep in mind i am not a weed user n hadnt touched it since 81....sooo...is my system off kilter?