One had to consider other aspects besides inner strength. Each person's response to treatment is different, including current or past surgeries, co-morbities, underlying illness, weight loss & eating ability at diagnosis, radiation dosage, type, the radiation field, structure that is radiated, if done bilaterally, destruction of parotid gland, if having concurrent chemo, and type of chemo that impacts wether a person may need a peg. Sometimes things are out of our control, no matter what we say, do or think.
In my case, my initial induction chemo reaction was worse than all my subsequent radiation and chemo treatments, including surgeries, all combined for the past three years, which was all a walk in the park in comparison to what I went through for the six month's, so that impacted my needed a peg tube during hospitization, and in the future for any treatments due to the comorbitities.