AITK for not being able to participate enthusiastically in someone close’s wedding?

So I (26F) need some outside perspective because I genuinely don’t know if I’m being unreasonable here.

Someone very close to me (immediate family-bro) is getting married soon, and there’s a lot of excitement in the house. Multiple functions, dance performances, outfit planning, constant discussions — the whole thing.

The issue is… I’m just not feeling it.

I’m not creating drama. I’m not refusing to help. I’m doing basic responsibilities — cooking when needed, attending discussions when called, being present where required. But I’m not enthusiastic. I haven’t been able to set up a dance performance from my side yet, and I haven’t even finished all my shopping. Everyone else seems way more proactive and involved, and I feel like I’m lagging behind.

I’m also not super engaged in the “ladies talk” about sarees, jewellery, etc. I feel drained and honestly just waiting for the wedding to be over.

Part of it might be that I’ve been low energy lately — physically tired and a bit emotionally overwhelmed. Career, relationship issues etcThere’s also some subtle resentment I’m trying to process (like attention shifting, comparison vibes between families, comments about my weight, etc.). Nothing explosive, just internal stuff.

From the outside, I probably look disinterested or careless.

I feel guilty because this is a big moment for someone I care about. But I also can’t force excitement that I don’t genuinely feel.

So… AITA for not participating enthusiastically in a close family wedding, even though I’m not actively causing problems — just not being the most excited person in the room?