Yes sativa will do that to you! Do not smoke any more high grade sativa untill you are more experienced. also because of the nature of your usage/medical problem i would agree with the others in you definitely need a good indica. just be careful! if you smoke to much it can have you on your ass and really hungry and sleepy, dosage is very important when your tolerance is low, take a hit and wait 10 min then repeat if necessary :rastasmoke: keep tokin on some indica and see if your problem doesn't go away. i guarantee if you get the right strain you will see improvement to your headaches. im not an expert on medical strains so ill let some of the others like stinky make their recommendations as to which ones you'll want to request at your club. Best of luck
- sand man