Old Age VS Weight Gain

I think I'm falling apart and I can not decide if it's because I'm getting older or that I've gained so much weight. Last week my blood pressure went dangerously high - high like both numbers were triple digits. I'm pretty sure it's because I've gained weight and my exercise routine is non-exisitent. I've wanted to do yard work but because I'm alergic to almost every grass/weed in our yard (becoming worse as I get older!) and I woke up with a sinus headache I couldn't. My sinus headaches are notoriously known to become so severe that I vomit. So, instead of doing the yard work (which by the way should be Joe's job and since I was mad at him I decided I would do it) I went to the dentist and the allergy doctor to get my shot. While there my injection site swelled more than usual and is now about the size of a baseball (about 4 hours later). Why am I having since reactions - old age or weight gain? Oh and by the way - I still have several yellow fly bites that are visible....hmm, old age?