I need help ladies. I am almost 18 weeks pregnant with my third child. Lately I have been spotting…

I need help ladies. I am almost 18 weeks pregnant with my third child. Lately I have been spotting pink a lot and have had two very small blood clots. My dr said the pink was from a UTI but I hadn’t seen her since the blood clots. I have been in so much pain lately that every night my ‘downstairs’ swells and throughout the day I get very shard nerve pain that started just in my back but now has gone up to my neck and head and down to my toes, it hurts so bad it makes me almost feel paralyzed. Idk what to do. And I have no idea why this would be happening. I can barley even hold my 1 year old son for two minutes or just stand up without wanting to cry in pain. I know it’s not growing pain because it doesn’t hurt this bad. I had my other two kids and didn’t cry during labor I laughed and made jokes. My family thinks it’s something really serious because they have never seen me cry from pain before