Hi,
On Belantamab, there have been quite a few posts. See: https://forum.myeloma.org.uk/forums/topic/belantamab-mafodotin-antibody-drug-conjugate-adc/
I know dexamethazone can be tough. I had the insomnia too. As you are 5 feet, could you ask for a dose proportionate to weight? (it’s done for other chemo…).
Alternatively, you could simply ask for a smaller dose or take it at a different time.
I know that this is not much help.
Regards
Rabbit