Purple spot!

Today is not such a good day. Started off by having a shower and donning some DVT stockings afterwards to see if this would help my legs at all as the pharmacist recommended this a couple of weeks ago. I got ready and went with my step mum to the local supermarket to get some bits and have lunch. Almost immediately I noticed a pain on the top of my left foot. Soon after, another pain started in my back, right hand side just below my shoulder blade. When we sat down to eat I noticed a purple blob in my right hand, below and to the left of my knuckle. I don't like the appearance of something like this as it looks very similar to the dark purple lump that appeared on my kneecap after I was thrombolysed. After we ate it was time to pick up a few bits but soon I got another pain, the same as the other two in my head and I started to feel quite sick. I can feel the left side of my mouth weakly trying to pull a bit but it's not gone into the usual droop/spasm. I don't like this, it's worrying and I don't understand what's going on :(. Functional? I don't know about functional purple blobs.