How to link an index page into main navigation dropdown without ruining the page margins

Hi there! I am wanting to have links in the main navigation on my page (sandracurry.com/home) under "Heal" to "Pain Relief" and "Emotional Wellness." I made the Pain Relief and Emotional Wellness pages in part of an Index page. I learned that an Index page doesn't provide the links to the pages in it when in main navigation bar. So, I made a drop down for the main navigation and put links under it for Pain Relief, etc to link up with the index. The problem is that when I click on the pages from the drop down, all of the margins are changed to accommodate the dropdown navigation on the side of the page. This margin change ruins everything in the index.

What do I need to do to have page links in the main navigation for Pain Relief, etc? The Index page doesn't do that, and the dropdown messes up the margins. Is there another solution? I don't know what to do.....

The first pic is what it looks like in the original index page (which is how I want it to look). The second pic is what the dropdown does to it.

My page is sandracurry.com/home. If you go to the main navigation, Heall is the index page, and Heal is the drop down.

Thanks so much!

Anyone out there?  I'd love some insight on how to fix this. Thanks!

Have you figured it out yet?