 [ Symptoms ] have herniated discs getting injections for them hard time sitting looking for a pillow to use to be able to sit i have herniated discs in my back i get injections for them every 3 months i am having a hard time sitting and am looking for some kind of pillow to use that will not apply to much pressure and i can carry around and take to the office i do not know if a gel pillow would work or not any help or ideas would be appreciated thank you [ Disease ] you would need to be blood typed by a laboratory test you can not rely on genetics when it comes to blood type i do not know your age but if you are old enough to donate blood you will find out your blood type for free