Hi Holly, though I’m not a Chi expert I can understand your frustration. and have some of my own experiences with shoes and and orthotics issues in the past.
It seems to me that there is some issues with the shoes and the orthotics, of course. My questions are:
1. Are the Orthotics custom made? or over the counter? if they are custom made by a specific orthotic company perscribed by your doctor you can call your doctor and have him do a Gait analysis to see if there were some changes in how you walk / run that the Orthotics that was perscribed and made might need to be tweeked?
2. It could be the shoes… you might want to go back to the store you brought them (if it was a running speciality store that have personnel there who knowledged in fitting running shoes) Since all brands of running shoes have variances in how they are made according to foot pronations some have soles and arches that are built up to support the foot. once you add additional orthotics to the mix it the combination could throw your gait off. causing the shin splints and or ankle pain.
It’s something to look into. Generally if you get the right fit of shoe according to your foot pronations you really shouldn’t need additional support with a orthotic? unless the shoe is a older shoe and the factory insert is worn out but there is still enough mileage in the shoe it’s self. Depending on if the shoe is either a motion control or Stability shoe where this is added support in the inner side of the sole (Archway) adding a orthotic to the mix could throw your foot to the outer edge. So if you go back to the store where you brought your shoes be sure to fit your orthotic in the intended shoe your going to purchase and do a walk about/run about for a about 10 to 15 minutes if the store has a Treadmill to try them out or let you run around their parking lot to see if the combo causes issues. And of course if you find no problems at that time, make sure that the store will let you return them with in 30 days money back or another exchange. some will do it others may not but if they are runner’s themselves and want to make sure you are satisfied with your purchases they should help you find the solutions to the Shoe/orthotic problem if your Doctor is unable to.
I used to have a lot of shoe/foot /orthotic issues in the past 10 years of running myself and have dealt with a orthopedic foot Doctor and some of the Local running shoes stores where I live. I’ve gone through several PT sessions to correct my foot issues. finally I think I’ve got things worked out so that I no longer need special custom orthotics. I wish you luck, just keep working with your doctor, Physical Therapists and or the Running shoe stores to find a solution.