A faecal worm egg count will give you some idea of her current status - if she has worms there is no choice but to use a chemical wormer. Preferably an ivermectin (like Oramec) or a Levamisole one. Oral administration preferable in goats. Ivermectin at 2x sheep dose rate, Levamisole at 1.5x sheep dose. Either your vet or a sheep farming neighbour will have them. Then a 2nd worm egg count a few days post-worming will give you an idea of resistance.
Re vaccination - clostridial bacteria will almost certainly be present where you are, these live in the soil.... I would strongly recommend vaccinating with Lambivac (2 x2ml initial dose, 4 weeks apart, under the skin) - against enterotoxaemia and tetanus mainly, and probably also separately Ovipast (same as Lambivac, just preferably not on the same day/same injection site) - against pasteurella. Maintenance dose is is 2ml every 6 months Lambivac, annually for Ovipast. This is different to the sheep regime, but as always - you have to do your own risk assessment/cost analysis.
Taking a goats temperature - use digital human thermometer, rectal temp, easier if someone else is holding the goat. Only take a couple of minutes.
Do you have fluke where you are?