I can approve the sonic vibrations causing a collapse, stunning, deafening, etc! Lots of fun to be had! Also, Red Lobster, keep in mind that I'm shooting down abilities, not the story. A collapse crushing a captain and VC is far more believable than an actual offensive ability, especially if they weren't that great at Hoho/Shunpo. Their reishi barrier couldn't protect them from that, and also considering killing a captain isn't technically illegal (rank ascendancy), causing major structural damage to a building and fleeing would be an excellent reason for being branded a criminal.
An alternative, since you seemed interested, would be your shikai being able to manipulate non-living reishi such as walls or dirt, etc, just not plants/animals. In the previous scenario, you could theorize you released a high volume of destructive intent with the ability which swiftly weakened the foundations of the building and caused it to collapse. Through this means, you could also more effectively utilize spirit healing, in which you replace lost reishi in a target before repairing actual wounds, making your ability to heal more efficient! Also, with HemoPHOBIA, it isn't something you can simply overcome. A phobia is an "unreasonable fear". You can't reason with the unreasonable. If you had HEMOPHOBIA, then you would never be able to actually overcome it and yes, a prick on your finger would make you faint or something similar. Perhaps an extreme fear of blood, but not hemophobia particularly.