Should I be using mouthwash with fluoride toothpaste?

Definitely, yes. Fluoride mouthwashes are excellent in helping prevent tooth decay and great t use after brushing with sensitivity toothpaste.
Fluoride. Research shows that Fluoride helps prevent cavities in children and adults by making teeth more resistant to the acid attacks that cause cavities. Fluoride helps rebuild (remineralize) weakened tooth enamel and reverse early signs of decay. When you brush your teeth with Fluoride toothpaste, or use other Fluoride dental products, you are providing a “topical” benefit.
Sure. As long as your not using them at the same time. You can even use a mouthwash that has Fluoride in it.
You can. As long as you are not swallowing lots of the mouthwash and/or toothpaste it is no problem and it may help keep your tooth enamel healthy. You can not over-do topical Fluoride appllied to the surface of teeth in your mouth. Too much systemic (swallowed) Fluoride is not good although you would need to swallow a lot for it to be a problem.

Related Questions

Do you think I should stop using fluoride toothpaste and mouthwash?

Ask your dentist. Without being able to give you a complete ; thorough examination including a dental history ; full mouth x-rays we can't possibly know what is best for you regarding oral hygiene regimen. Find a dentist whom you trust and follow his\her advice. No harm and probably benefit from using a Fluoride toothpaste. Most mouthwashes don't do much and are not essential for most patients. There are exceptions.
Want cavities? Most people try to prevent cavities and trips to the dentist. You seem to want to make yourself more cavity prone. Doesn't make sense. Fluoride can only help you in your quest to keep your teeth healthy. In the concentrations you find in these products it will not harm you.

Is using toothpaste and mouthwash, with fluoride in both, daily, really that bad for you?

NO. The amount of Fluoride in toothpaste and in mouthwash is very small and therefore it would not have any adverse effect with daily use. Fluoride works by adsorption, i.e. Remain on the tooth surface to exchange ions and does not absorb into the surface.
Fluoride. Fluoride has been shown to reduce tooth decay in children and adults. It works on the surface of the teeth by making the enamel stronger and more resistant to the acids that causes decay, and it will reduce the bacteria on your teeth. Keep on using fluoride.

What are the best fluoride mouthwash and toothpaste?

Whatever you like. There are many toothpastes and mouthwashes on the market. All have the same active ingredients. Use whatever you enjoy using so you will use it consistently.
Personal preference. The best Fluoride and best toothpaste is the one that you will use. It's a matter of taste and preference for you. If you don't like the flavor, you won't use the product. If the product has the ada seal of approval, it's a good product.
Any. Ada approved product like many top brands is just fine.
Any ADA approved. Any ada approved Fluoride toothpaste that you will use 2-3 times a day would be wonderful. The inexpensive brands are fine as long as ada approved.
Enamelon. Try Enamelon which is a brand new product dispensed by dentists only.
ADA approved only. The very first think you should look at when choosing your toothpaste and mouthwash is the ADA Seal of Approval. This shows the product has been tested and its ingredients are safe and effective.
ACT rinse & anything. ACT rinse & anything on sale for toothpaste (all have the same amount of fluoride ( (900ppm) except prescription toothpaste ( (5000ppm)).)