First of all, thank you for so much, everyone, for your comments! They are super helpful, and I will definitely use them!
For me, I have been loosly tied to the scale. Since I've trained for a marathon before, I know that there's a point where everything either goes up in weight or plateaus due to muscle gain, and I LOVE that period of time. My gage for myself is general weight (i'm writing down my weight each week to see general trends, but checking each day just for curiousity's sake), along with how good I feel, the health of my skin (it changes dramatically when i'm healthier) and how my clothes are fitting.
I am worried right now because I recently got very sick due to not paying attention to what I'm eating. It might also have happened because I was vegetarian for 6 years and took B vitamin supplements during that period of time, and have just recently switched over to eating meat again (my reasons for being a vegetarian were not usual, it was because i had a month long terrible experience in a study abroad program when I was younger, and have been able to finally break past it for some foods). I don't eat fish, chicken, bacon, or any out-there meats. But I have been snacking a TON on ham, so I'm sure that threw everything out of whack in my system in the past month.
I'm just so frustrated because for those 7 months, a few years ago, I had training with a personal trainer for that marathon, and I naturally ate super healthy things. Because I loved running so much and always got up at 5am to go do cross training, I would eat almost no processed foods, no sweets, and I was eating a plethora of hearty wheat items and fresh fruits and vegetables. I was so proud of my body and for one time in my life I never thought twice about having greesy things once in a while because I was so committed, it didn't phase me the following day. And I really believe I can get back into that zone...I'm just having a hell of a time attempting to get there, and once I'm there, maintaining it.
The reason that healthy system got knocked out of whack was some family deaths and pressures of starting college, family job loss, and holding quite a few jobs myself (oh and the marathon I trained for filled up right as I went to sign up, so I ended up not doing it, which is why I'm doing it this year finally!). I've learned that terrible things in life are unavoidable, and I allow myself to be more relaxed with what I eat when things like this happen, but I never know how to turn it off anymore and get back to healthy balanced food/exercise life. Do you guys have any ways of coping with just tons of stress, or just picking those healthy habits back up after a long break? I feel like I fell of a great, healthy lifestyle and woke up two years later to find my body and my eating completely flipped. Very frustrating!