That's just the problem: as an outsider you don't have intimate knowledge of the problem and therefore can't judge it accurately. Some people faint at a pinprick while some can endure huge amounts of pain without even blinking. Does that mean that the first individual is faking it or is weak? Imo no: he/she just has a more sensitive nature and a lower treshold for pain.
I do think it's a good idea to seek outside counsel so to speak (insofar as it doesnt endanger one's freedom of course) but ultimately it's the individual that has to live his or her life so they alone can determine whether it's worth the effort or not.
yes how you perceive a problem is always subjective
some people are more fragile, sensitive to problems then others.
some people go through the roughest shit and still move on and some people get suicidal or kill themself over bad grades in school or a teenage break up.
however even though its subjective how we perceive a problem it doesnt mean that there is absolutely no objectivity when it comes to problems.
some problems are temporary, some problems will last forever, some problems will impact life quality more then others. and you can say that without being personal affected by it.
eg bad notes might enough reason for some south korean students to kill themself but its hardly as bad like some incurable auto immun disease that gives you pain everyday and with no realistic hope of improvement. you can say that without neither being a south korean student nor having a painful auto immun disease