She's just big-boned or has hypothyroidism or medication or emotional problems or in denial, probably nothing to do with eating at all.
Her water consumption is clearly the responsibility of others.
(, Wed 12 Jun 2019, 16:32, Reply)
If a person can initiate legal action, they can ask for a drink of water.
(, Wed 12 Jun 2019, 17:15, Reply)