Possible swim bladder

[Denise Doherty]

My Saragoi is being treated for ulcers. She has 3 including one on her gill. She had a 4th treatment on Thursday using everything in the medi kit. Loose scales were also removed. Since then she is swimming but definitely not straight. She’s got her head slightly down. Water parameters are pH 7.5, ammonia 0, nitrite 0.25ppm, KH 4. Could this be the start of swim bladder? What should I do please? I do have a 500 litre Vat and can buy a small filter and pump if needed. Thank you

[Alburglar]

Someone, GadgetBazza, On here posted up a video of sorting out a swim bladder, but they often sort it themselves.
I have no first hand experience but:
An old boy in the Koi club told me that feeding frozen peas can help. Also epsom salt baths.