I'm just starting to explore making my own sigils and I understand that the intent behind them has to be very direct, i.e. no 'I hope, I want' etc. I have found this principle easy to get to grips with for the first couple of sigils that I have been exploring, such as "My mind is focused" and "I am calm", however I am having a bit of trouble with another sigil that I really want to create.
I suffer from chronic daily headaches and regular migraines and I would like to create a sigil to help me combat this, but I don't really know how to word this intent. Is it okay for the sigil to have a negative phrase in it such as "I do not have headaches"? Or would something more ambiguous but positive like "I am free of headaches" be better?
I don't want to create a general wellness or health sigil as this is a health issue which has been ruining my life for several years and I feel like the sigil would have more power if it was specifically for the headaches.
Any advice would be very much appreciated, and thank you for your time! =)