feeling worse :(

I don't know what the heck is going on but I have been feeling so badly lately.  My appetite has still been off, I'm frequently nauseous, and I've lost another 4-5 pounds in the past week or so-down to around 112 according to scales at home which is very low for me.  I have this constant feeling of light-headedness and feel like I could faint but thankfully I haven't!  I went to my Gyn for my last follow-up post-hysterectomy and they are running some blood tests-checking thyroid, vitamin d, etc.  I also fortunately have an appointment with my ENT this Thursday so hopefully I'll get some kind of answers.

This morning I feel flu-like.  I've been in bed all morning which is horrible but I just can't muster the energy to do anything.  I have to get up soon and shower and go get my kids from school.  I'm a little nervous about that because a few days ago this feeling was so bad, I told my husband I couldn't trust myself to drive.  How incredibly frustrating.  I was feeling better just a couple weeks ago and thought I may be able to return to work next week.  Now that doesn't look like it's gonna happen.  

So it makes me wonder, is this a manifestation of Meniere's?  Am I having some kind of vitamin deficiency like vitamin D or B-12?  Is it my thyroid?  Hopefully, my bloodwork will help shed some light on all of this.  The weather continues to be insane for my area.  I know it contributes to my problems somewhat.  Like today for example, it is incredibly windy and cold.  That change in pressure seems to always get me.  But surely that's not all there is to what I'm currently feeling.