let me see ...
first and fforemost imagine good things coming into yur life
Keep yur life cluutter free..[do not bring in baggage from yur old life---metaphorically and in reality]
keep bowls of sea salt {if not available check for any rock salt...inyur local grocery store]in the four corners of yur room.keep changing this as it will change colour ...

spray some holy water around your every day.[ if not availble..make some by holding your hand on the bowl of water and imagining good wishes into the water]

Keep some clear quatz crystals around your room.keep cleaning under running water from time to time


I hope you do well and send my good wishes to yu

to my knowledge crystals are only negative if being used in the wrong chakra position - as the chakra is believed to be a vortex of spinning energy the fastest being at the crown and slowest at the base so if get those wrong then create a negative spin and unbalance our chakra....

I like your question - it's good to challenge our relationship with crystals...Have you asked your piece of hematite directly why you have a headache? I'd love to know what it tells you!
 As hemaitite is a drawing stone the wearer or user may experience a negative effect like a headache - akin to a healing crisis when 'toxins' physical, mental, emotional or spiritual begin to surface. However Hematite is said to ground negativity, so why does this happen for some people?
 I am highly sensitive/a conscious empath and I always find around hematite I drop things and swear - uncharacteristically. I find myself tuning in to hematite's ability to absorb, and somehow it feels too low a vibration to tolerate.  I tend to go for other grounding stones that work for me, like jet (my preference) or obsidian, or, by contrast, using very ordinary stones I have found on walks - (as long as they are cleansed before and after use.)