Short answer: you probably aren't. But let me give you a longer one, because this question deserves more than reassurance.
Being told you're "too sensitive" is one of the most effective ways to end a conversation before it starts. It moves the focus from whatever happened — whatever you raised, whatever hurt you — to a character flaw you now have to defend or disprove. By the time you've finished explaining that you're not actually too sensitive, the original issue has disappeared entirely.
That's not always intentional. Some people genuinely believe their partners are overreacting, and sometimes they're right. But here's a useful way to think about whether "you're too sensitive" is a fair observation or a deflection:
Ask yourself what happened after
When you bring something up and your partner responds by saying you're too sensitive, does the conversation ever circle back to what you originally raised? Do they ever say something like: "I hear you — I still think you're reading too much into it, but let me think about what I could have done differently."
If the answer is no — if "you're too sensitive" always closes the door rather than opening a different one — that's worth paying attention to. A partner who disagrees with your interpretation of events can still make space for the fact that you were hurt. These things aren't mutually exclusive.
Consider the pattern, not just the moment
One instance of being told you're too sensitive, in the context of an otherwise open and reciprocal relationship, is different from a pattern where your emotions are routinely dismissed, minimized, or turned back on you. The former might be a communication style mismatch. The latter is something else.
Ask yourself: do you ever feel like your feelings are welcome? Is there a version of emotional expression that your partner receives without redirecting it? Or does almost everything you feel get classified as excessive, irrational, or needy?
The phrase itself is a signal
"You're too sensitive" is almost never clinically accurate. Sensitivity is not a pathology. What the phrase actually communicates — whether intentionally or not — is that the person saying it doesn't want to deal with what you're feeling right now. Sometimes that's a bandwidth issue and a conversation worth having. Sometimes it's a consistent refusal to be accountable. Knowing which one you're dealing with is worth the effort to figure out.
If you're regularly questioning whether your reactions are valid, that's not usually a sign that you're too sensitive. It's usually a sign that you've been taught to doubt yourself.