@Pollyanna
Sometimes aroma from plants can cause headache or if there are pollens around giving intolerance.
You can use ALL CLEAR SERUM and maybe SHIELD OF 7 RAYS before you go to the plants or request VK GOLDEN SUNRISE NEGATE THE EFFECT FROM THESE PLANTS OR SURROUNDINGS FOR MY COMFORT.
You can do this for nutrients too that you are handling.
You can do one at a time to know the cause.
You can also request VK to guide you to the cause.