Hi LisaAnnB,
I'm also new to the site, yours is the first post I've read... My dad died on Oct 9, with mom by his side and much family nearby. The circumstances of his passing were by all accounts ideal: he was eighty, had his wife and family, had no pain, and went peacefully. For all that, I'm grateful. However, it does nothing to change the overwhelming and sometimes paralyzingly pain of loss.
I wish I could offer great advice, but I'm still trying to figure it out myself. I can only offer condolences and confirmation that what you're feeling sounds completely normal to me. A month and a half out, I'm not feeling much different or better than when it was brand new. I have finally looked into grief support groups (though can't find anything that begins before January!), and I found this site. All I can recommend is that you hold onto your mom, and sisters, and husband; understand that this is supposed to be difficult (wouldn't you be more concerned if you felt ok?); seek out the support you may need; and be kind to yourself. I'm pretty terrified of Thanksgiving and Christmas, and up 'til now the best I've been able to do is work on the gratitude... I'm truly thankful to have had a dad so worthy of missing this much. I'm glad to hear you had the same.
Keep putting one foot in front of the other...