One of the "commandments" of Yama (the first step of the eightfold path in the Yoga Sutras of Patanjali) is satya, truthfulness. It comes immediately after Ahimsa (nonviolence) and, like all other points of Yama and Niyama, is meant to help establish oneself in it.
Satya is often interpreted as being honest with oneself, for telling the truth to others, we can sometimes hurt or offend them and thereby cause harm, violate the principle of ahimsa ... But there is a nuance. If by truth we mean the truth about ourselves, in particular, about our feelings and needs, then distorting it, in fear to hurt another person, is already a direct violation of the principle of ahimsa in relation to ourselves, and in the long term - in relation to others, too.
Any lie is costly in terms of prana, any lie leads to an unconscious tension within. And it’s a matter of time, when there is enough tension to explode or sublimate into illness, melancholy or depression ...
To be yourself, to sound yourself, your truth - it’s such freedom, such happiness! .. But what about another person, someone who can be hurt by our truth? Firstly, it’s important to realize that it is not the truth itself that hurts, but how a person interprets it for him-/herself. Secondly, having realized, practice compassion, be ready to help them through that possibly painful experience, help them cope with it and maybe be even heal it - through loving presence and attention. It’s about the 3rd principle. Just do not pretend to be someone else, someone more convenient or pleasant than you really are. This is a road to nowhere ...