Check dry weight estimation (body composition monitor).
Can increase dry weight from 0.5 to 1.5 kg.
Avoid taking bp medicines before dialysis.
Can try tablet midodrine 2.5 mg 30 minutes before dialysis (can repeat after 3 hours) in between dialysis.
Can try hemodiafiltration instead of hemodialysis.
Can increase frequency of dialysis.
Avoid too much of weight gain between 2 sessions of dialysis.
Check hemoglobin.
Cardiologist opinion, do ECHO or DSE