Side effects - Hawaiian Baby Woodrose affects each half of swim's body differently

[Synesthesiac]

swim did about 7 hbrw the other day, and noticed an odd effect. His left arm and left side of his body in general felt numb and really tingly, like really strong pins and needles for a good hour or so, but the right side of his body felt no tingles at all. It was quite an odd experience, like the hbrw was deciding to randomly effect different sides of swims body for no apparent reason. None of swims friends seemed to have this effect. Then swim thought it may be related to his heart, as people often tell heart conditions by pains/pins and needles just in their left arm and on their left side. Anyone else experience this? Probably related to its vascoconstrictive properties. Swim may take some aspirin next time to thin the blood and ease blood flow (if thats advisable)