Things are difficult atm. Finances etc (LP/debt).
This isn't a new thing (money etc) but lately I've just not been feeling myself.
Some days every little thing feels like a major deal, some weekends I've had to force myself to get dressed and some days I've woken up feeling great. 
Due to feeling like this I have started exercising regulary (running/swimming) which is giving me some more energy but I still just don't feel right.
My closest friends have both had things going on and I've been there to support them and then one has been in hospital but OK now.
I just seem to feel either great or really low and can't seem to feel 'normal' iyswim?
Collegues have been asking if I'm OK and saying I look 'pale' 'sad in the eyes' 'seem really down and they're not use to seeing me like this' etc
I spoke to my friend tonight and mentioned I'd made a GP apt for next week as think I may be depressed and need something to help me balance out again. She told me that no-way was I depressed. It's stress and something entirely different. That if I was actually depressed I wouldn't be able to go swimming, running and work. That I wouldn't be able to get myself up in the mornings. I explained that it has become hard work and I'm having to force myself to do it. That the fact I've gone into work today despite being in agony after tooth extraction is because I know if I stop I'll never get started again.
Since this conversation I've felt on the verge of tears and I have no idea why. I don't know if it's because I feel my friend has let me down (I've supported her lots atm as her mum has cancer and she's been in hospital for 2 days), if it's because I'm just emotionally drained atm or whether it's just my state of mind making everything feel worse than it really is. 
Anyone else been here and have advice? I just want to feel like me again.