First timer. smoked high potent marijuana, whole joint very fast. bad trip, severe panic attack, shakes, high hr - b/p, subsided in 4 hours. now brain fog and poor coordination 24 hours after. this ok? will subside? due to no tolerance of thc?

Not clear what you "smoked" or where you obtained your drugs. Additives such as Fentanyl have often been added. Would urge you seek medical attention ASAP. Glad you have contacted us. Perhaps we can help guide you toward both evaluation and future stabilization via a virtual consult (www.connect@healthtap.com)

It will subside with time as long as you stay away from weed and other street drugs. Drink enough water daily so that your urine is mostly colorless. As you found out Marijuana is a psychoactive drug and will mess with your brain. MJ users are called stoners for good reason. Abstain for it and any other street drugs.