really need your help.

help bros, i am looking for some seeds..

lets say i know a person.. that is way to much important to me, and she suffer headaches caused from life´stress... i dont know how this works really, smoked like 2 or 3 times in my life, but i know weed can vanish pain really fast..(well thats what i heard)....

alright..so i want to buy some good strains...but i dont want the fly effect you know..,,,see "things".... and that kind of effects...just vanish away the headache fastest way possible.

and this is important too.. i have "heard" from people that when you smoke... sometimes, could cause body low pressure, how this could happend? i mean in what circumstance, because i really dont want anyBAD effect to this person, you know... offering weed and be worst, no deal lol.

any advice is really appreciated!!