I'd like to make a language that only has consonants. Since I kind of feel like the letter "h" is a consonant, I'd prefer to omit it. The language would include b, ch, d, f, g(hard), j, k, l, m, n, ng, p, r, s, t, th(voiced and unvoiced), v, and z. I'm think maybe humans wouldn't be able to speak it without also pronouncing h and/or vowels. My question is, what (if any) problems in pronunciation would arise if humans tried to speak a language like this?

I'd like to make a language that only has consonants. Since I kind of feel like the letter "h" is a consonant, I'd prefer to omit it. The language would include b, ch, d, f, g(hard), j, k, l, m, n, ng, p, r, s, t, th(voiced and unvoiced), v, and z. I think maybe humans wouldn't be able to speak it without also pronouncing h and/or vowels. My question is, what (if any) problems in pronunciation would arise if humans tried to speak a language like this?